{"e":{"id":293951,"source":"ia_catalogofcopyrig371213lib","title":"UNDERSTANDING OUR EARTH: SOIL","header":" b&w, 16mm. Summary: Indicates the elements which are found in topsoil, subsoil, loose rock, and bed rock and explains how soil is formed. Discusses methods of soil conservation and describes the different types of soil throughout the United States. Credits: Educational collaborator, Glenn O. Blough","year":1953,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":22034,"line_end":22049,"source_text":"sd., b&w, 16mm. \n\n\nSummary: Indicates the elements which are \n\n\nfound in topsoil, subsoil, loose rock, and bed \nrock and explains how soil is formed. Dis- \ncusses methods of soil conservation and \ndescribes the different types of soil through- \nout the United States. \n\nCredits: Educational collaborator, Glenn \nO. Blough. \n\n© John Smart; 26May53; MP3592. ","source_meta":{"name":"Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1953","url":"https://archive.org/details/catalogofcopyrig371213lib","cite":"Internet Archive catalogofcopyrig371213lib (OCR text)","file":"/root/projects/publicreel/data/raw/cce_third_series/1953_catalogofcopyrig371213lib_djvu.txt"},"ia_items":[],"ia_lookup":[]},"regs":[{"id":312858,"entry_id":293951,"reg_number":"MP3592","series":4,"see_also":[],"reg_class":"MP","published":true,"claimant":"John Smart","author":null,"deposit":null,"reg_date":"1953-05-26","part":null,"part_title":null,"source_line":22049,"raw":"rock and explains how soil is formed. Discusses methods of soil conservation and describes the different types of soil throughout the United States. Credits: Educational collaborator, Glenn O. Blough © John Smart; 26May53; MP3592","flags":["see_reference_in_head"],"status":"no-renewal-found","pd_date":"1982-01-01","reason":"no renewal entry found for 1980-1982 or in the Copyright Office renewal records 1978-2025","match_kind":null,"match_confidence":null,"title_similarity":null,"renewals":[],"window":[1980,1981],"window_volumes":[{"year":1980,"ia_identifier":""},{"year":1981,"ia_identifier":""},{"year":1982,"ia_identifier":""}]}]}