Hawkins, Laurence Ashley. Adventure into the unknown : the first fifty years of the General Electric Laboratory / Laurence Ashley Hawkins. - New york : William Morrow, c 1950. - ix, 150 p. : ill. ; 22 cm. Includes index. 338 338 Subjects--Topical Terms: General electric company. Dewey Class. No.: 621.3 / H314a