{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"LIP1099528","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"professor_tyndall_lecturing_at_the_royal_institution_engraving","item_variant":"undefined"},{"item_id":"LLM455437","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"professor_john_tyndall","item_variant":"undefined"},{"item_id":"UIG3586066","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_study_of_john_tyndall","item_variant":"undefined"},{"item_id":"UIG3586067","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"EPL6807713","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"UIG3586061","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"UIG3586068","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"UIG3586060","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"EPL6814897","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"UIG3586062","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"UIG3586063","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"UIG3586065","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"UIG3730500","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall","item_variant":"undefined"},{"item_id":"EPL6807716","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_photo","item_variant":"undefined"},{"item_id":"XLA3769798","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"john_tyndall_letter","item_variant":"undefined"},{"item_id":"UIS5099681","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1865","item_variant":"undefined"},{"item_id":"TRI99026","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"irish_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_93_b_w_photo","item_variant":"undefined"},{"item_id":"LLM11697035","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_engraving","item_variant":"undefined"},{"item_id":"XLA3769797","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"john_tyndall_irish","item_variant":"undefined"},{"item_id":"LLR984209","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lock_and_whitfield_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_john_tyndall_b_w_photo","item_variant":"undefined"},{"item_id":"PVD1682836","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lock_and_whitfield_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_john_tyndall_b_w_photo","item_variant":"undefined"},{"item_id":"LIP1613467","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"professor_tyndall_lld_frs_engraving","item_variant":"undefined"},{"item_id":"LIP1049977","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_phonograph_engraving","item_variant":"undefined"},{"item_id":"UIG3522020","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"photographic_portrait_of_john_tyndall","item_variant":"undefined"},{"item_id":"UIG864981","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_1893","item_variant":"undefined"},{"item_id":"UIS5095138","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lock_and_whitfield_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"united_kingdom_john_tyndall","item_variant":"undefined"},{"item_id":"UIG865202","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_1893","item_variant":"undefined"},{"item_id":"TRI99384","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_s_apparatus_for_showing_why_the_sky_is_blue_photo","item_variant":"undefined"},{"item_id":"LIP1627736","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_late_professor_tyndall_frs_engraving","item_variant":"undefined"},{"item_id":"TRI106138","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"richmond_george_1809_96","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_93_1864_crayon","item_variant":"undefined"},{"item_id":"LIP1063263","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_late_professor_tyndall_lld_dcl_frs_engraving","item_variant":"undefined"},{"item_id":"TRI98492","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"haig_florence_e_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_john_tyndall_1820_93_pastel_on_paper","item_variant":"undefined"},{"item_id":"LIP1048877","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_lld_frs_engraving","item_variant":"undefined"},{"item_id":"TRI181938","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_lighthouse_not_professor_tyndall_from_moonshine_published_20th_december_1884_wood_engraving","item_variant":"undefined"},{"item_id":"LLM5224082","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_b_w_photo","item_variant":"undefined"},{"item_id":"LLJ613501","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"cecioni_adriano_1838_86","item_category5":"not_balown","item_list_name":"search_results","item_name":"professor_john_tyndall_colour_litho","item_variant":"undefined"},{"item_id":"XOS1191831","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lock_and_whitfield_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"john_tyndall_b_w_photo","item_variant":"undefined"},{"item_id":"UIG3586064","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"diagram_of_an_experiment_conducted_by_john_tyndall","item_variant":"undefined"},{"item_id":"LLR736363","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"professor_john_tyndall_phd_lld_dcl_frs_c_b_w_photo","item_variant":"undefined"},{"item_id":"TRI99027","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_photograph_of_john_tyndall_1820_93_irish_physicist_photo","item_variant":"undefined"},{"item_id":"TRI99381","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_93_charcoal_heightened_with_white_on_paper","item_variant":"undefined"},{"item_id":"LIP1059295","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"wirgman_theodore_blake_1848_1925_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"visit_of_the_queen_to_the_loan_collection_of_scientific_apparatus_at_south_kensington_engraving","item_variant":"undefined"},{"item_id":"EPL6831741","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_caldesi_carte_de_visite","item_variant":"undefined"},{"item_id":"UIS5072152","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_irish_physicist_c_1875","item_variant":"undefined"},{"item_id":"UIS5071555","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_irish_physicist_c_1875","item_variant":"undefined"},{"item_id":"GIA4775897","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_1893_irish_physicist","item_variant":"undefined"},{"item_id":"XEE4405868","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"john_tyndall_1820_1893_irish_physicist","item_variant":"undefined"},{"item_id":"LLM8634691","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_john_tyndall_1820_93_litho","item_variant":"undefined"},{"item_id":"UIS5071510","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_irish_physicist_c_1875","item_variant":"undefined"},{"item_id":"EPL6822508","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"downey_william_daniel_fl_1855_1940","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_1893_irish_physicist","item_variant":"undefined"},{"item_id":"UIS5089032","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_irish_physicist_c_1880s","item_variant":"undefined"},{"item_id":"UIS5068664","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_irish_physicist_c_1860","item_variant":"undefined"},{"item_id":"UIS5069342","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_irish_physicist_c_1875","item_variant":"undefined"},{"item_id":"UIS5077344","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_british_physicist_c_1880s","item_variant":"undefined"},{"item_id":"UIG1574793","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"demonstration_to_show_that_sound_is_carried_by_a_movement_of_air_1867","item_variant":"undefined"},{"item_id":"XLA3747972","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"john_tyndall_s_house_at_haselmere","item_variant":"undefined"},{"item_id":"NRM259595","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"our_national_church_published_by_john_haywood_1883_coloured_engraving","item_variant":"undefined"},{"item_id":"LIP1627624","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"holland_tringham_joseph_1861_1908","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_late_professor_tyndall_litho","item_variant":"undefined"},{"item_id":"LIP1627623","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"holland_tringham_joseph_1861_1908","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_late_professor_tyndall_litho","item_variant":"undefined"},{"item_id":"UIG5425973","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"engraving_depicting_an_experiment_designed_by_john_tyndall_to_produce_heat_by_friction_john_tyndall_","item_variant":"undefined"},{"item_id":"DGA3584210","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_john_tyndall_1820_1893_irish_physicist_engraving","item_variant":"undefined"},{"item_id":"LIP1063285","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"cleaver_reginald_thomas_c_1870_1954","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_funeral_of_professor_tyndall_at_the_graveside_engraving","item_variant":"undefined"},{"item_id":"DGA2581542","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_leighlinbridge_1898_haslemere_irish_engineer_and_scientist","item_variant":"undefined"},{"item_id":"UDK844433","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"replica_of_john_tyndall_s_boiling_point_apparatus_1880","item_variant":"undefined"},{"item_id":"LLJ585276","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_royal_society_engraving","item_variant":"undefined"},{"item_id":"UTD4952278","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"downey_w_and_d_fl_1860_1905_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_1820_1893_irish_born_british_physicist_woodburytype","item_variant":"undefined"},{"item_id":"DGA1086042","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_john_tyndall_leighlin_bridge_1820_hindhead_1893_irish_physicist","item_variant":"undefined"},{"item_id":"LLM5216783","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"cleaver_reginald_thomas_c_1870_1954","item_category5":"not_balown","item_list_name":"search_results","item_name":"english_physicist_john_tyndall_in_the_study_of_his_home_hindhead_house_haslemere_surrey_engraving","item_variant":"undefined"},{"item_id":"TRI423095","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_at_the_bel_alp_hotel_with_friends_in_july_1876_b_w_photo","item_variant":"undefined"},{"item_id":"LRI9037125","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"hamilton_john_mclure_1853_1936","item_category5":"not_balown","item_list_name":"search_results","item_name":"tyndall_john_portrait_by_j_m_hamilton_1893_oil_on_canvas","item_variant":"undefined"},{"item_id":"TRI141703","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"michael_faraday_1791_1867_with_his_niece_jane_and_john_tyndall_1820_93_1858_b_w_photo","item_variant":"undefined"},{"item_id":"XJF128007","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"professor_john_tyndall_1820_93_at_the_royal_institution_turning_the_handle_of_the_phonograph_engravi","item_variant":"undefined"},{"item_id":"LLJ583116","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"professor_tyndall_lecturing_at_the_royal_institution_1870_engraving","item_variant":"undefined"},{"item_id":"BL3313951","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"woodcut_depicting_the_murder_of_sir_john_tyndall_as_he_was_entering_his_chambers_at_lincoln_s_inn_he","item_variant":"undefined"},{"item_id":"UIG1574784","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sound_travel_1867","item_variant":"undefined"},{"item_id":"TRI202493","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"men_of_the_day_no_43_the_scientific_use_of_the_imagination_cartoon_of_john_tyndall_giving_a_lecture_","item_variant":"undefined"},{"item_id":"UIG1574785","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sound_travel_1867","item_variant":"undefined"},{"item_id":"TRI3600831","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"sonorous_sensitive_pen_ink_and_w_c_on_paper","item_variant":"undefined"},{"item_id":"TRI99385","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"list_of_works_by_john_tyndall_1820_93_professor_of_natural_philosophy_at_the_royal_institution_of_gr","item_variant":"undefined"},{"item_id":"EUL416964","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"grant_francis_1803_78","item_category5":"not_balown","item_list_name":"search_results","item_name":"mrs_margaret_stuart_tyndall_bruce_of_falkland_1863_oil_on_canvas","item_variant":"undefined"},{"item_id":"LIP1051895","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_centenary_of_the_royal_institution_engraving","item_variant":"undefined"},{"item_id":"STC469151","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_martyrdom_of_master_william_tindall_in_flanders_by_vilvord_castle_illustration_from_acts_and_mon","item_variant":"undefined"},{"item_id":"EVB7066139","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_tyndall_19th_century_irish_physicist_he_reached_popular_audiences_with_his_books_on_experimenta","item_variant":"undefined"},{"item_id":"LIP1046913","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_royal_society_engraving","item_variant":"undefined"},{"item_id":"TRI443687","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_ice_flower_published_in_the_reader_1865_litho","item_variant":"undefined"},{"item_id":"VHP342380","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"tyndall_s_steam_powered_fog_horn_litho","item_variant":"undefined"},{"item_id":"EPL6839935","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"queenwood_college","item_variant":"undefined"},{"item_id":"BL3315998","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_scientific_diagram","item_variant":"undefined"},{"item_id":"UIS5067008","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"heat_calorimetric_experiments_tyndall_s_boiling_point_apparatus_1880","item_variant":"undefined"},{"item_id":"UIS5073809","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"michael_faraday_and_other_leading_scientists_of_the_19th_century","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"john tyndall","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":95,"search_results_page_number":1}