{"e":{"id":292656,"source":"ia_catalogofcopyrig361213lib","title":"PLANT GROWTH AND MUTATION IN TRADESCANTIA VIRGINICA L","header":"Shows the formation of a mutation, a colchicine solution having been used to prevent the last two phases of cell growth from taking place. PLANT GROWTH AND MUTATION IN TRADESCANTIA VIRGINICA L (SPIDER- WORT) Cont'd. Credits: Commentary, Arthur T. Brice, Elizabeth McClintock; photography, S. Strugger","year":1952,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":48149,"line_end":48166,"source_text":"filaments of the spiderwort. Shows the \nformation of a mutation, a colchicine solu- \ntion having been used to prevent the last \ntwo phases of cell growth from taking place. \n\n\n124 \n\n\nPLANT GROWTH AND MUTATION IN \nTRADESCANTIA VIRGINICA L (SPIDER- \nWORT) Cont'd. \n\nCredits: Commentary, Arthur T. Brice, \nElizabeth McClintock; photography, S. Strug- \nger. \n\n© Arthur T. Brice; 1Oct52; MP2945. ","source_meta":{"name":"Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1952","url":"https://archive.org/details/catalogofcopyrig361213lib","cite":"Internet Archive catalogofcopyrig361213lib (OCR text)","file":"/root/projects/publicreel/data/raw/cce_third_series/1952_catalogofcopyrig361213lib_djvu.txt"},"ia_items":[],"ia_lookup":[]},"regs":[{"id":311563,"entry_id":292656,"reg_number":"MP2945","series":4,"see_also":[],"reg_class":"MP","published":true,"claimant":"Arthur T. Brice","author":null,"deposit":null,"reg_date":"1952-10-01","part":null,"part_title":null,"source_line":48166,"raw":"ases of cell growth from taking place. PLANT GROWTH AND MUTATION IN TRADESCANTIA VIRGINICA L (SPIDER- WORT) Cont'd. Credits: Commentary, Arthur T. Brice, Elizabeth McClintock; photography, S. Strugger © Arthur T. Brice; 1Oct52; MP2945","flags":[],"status":"no-renewal-found","pd_date":"1981-01-01","reason":"no renewal entry found for 1979-1981 or in the Copyright Office renewal records 1978-2025","match_kind":null,"match_confidence":null,"title_similarity":null,"renewals":[],"window":[1979,1980],"window_volumes":[{"year":1979,"ia_identifier":""},{"year":1980,"ia_identifier":""},{"year":1981,"ia_identifier":""}]}]}