ABBREVIATIONS The following list includes abbreviations used in this catalog with specific copyright or bibliographic meanings. Definitions are not given for abbreviations in common use. (A) — author aka — also known as b&w — black and white (PCB) — proprietor of a work copyrighted by a corporate body otherwise than as as signee or licensee of the author (C) — child or children of the deceased © — copyright claimed by pseud. — pseudonym dba — doing business as descr. — description (E) — executor(s) of the author ft. — feet min. — minutes mm. — millimeters (PWH) proprietor of copyright in a work made for hire sd. — sound si. — silent ta — trading as (NK) — next of kin of the author who is not (W) — widow living, there being no will (Wr) — widower of the author
COPYRIGHT REGISTRATIONS OF MOTION PICTURES AND FILMSTRIPS July-December 1950 Class L — Published motion picture photoplays 387 Unpublished motion picture photoplays 5 392 Class M — Published motion pictures other than photoplays 569 Unpublished motion pictures other than photoplays 114 683 Filmstrips registered in Classes A and J 182 Total 1257 Renewals of works originally registered in Class L and Class M 144
The above figures show the registrations for motion pictures and filmstrips for July-December 1950, but do not necessarily represent the exact number of entries in this issue of the Catalog.
