Chromatic fantasy and fugue ; Concerto in the Italian style ; Fantasy in C minor ; Prelude and fugue in A minor /

Mode of access: Internet.

A study of chromatic aberration of a coma-corrected zoned mirror /

"Contract AF33(616)-6079 Project No. 9-(13-6278) Task 40572. Sponsored by: Wright Air Development Division"

Change gear devices : describing and illustrating the development of the screw cutting lathe and the United States patents upon the methods for obtaining various pitches of screw threads : prefaced by a brief history of the engine lathe.

Mode of access: Internet.