Additional data for the construction of small telescope objectives
Subtitle: calculated at the National physical laboratory
By: by T. Smith and R. W. Cheshire. Prepared at the request of the Director-general of munitions supplies.
Contributors: Cheshire, R. W.; National physical laboratory
Publisher: Harrison and sons
Published: 1916
Place of publication: London
Language: eng
Number of pages: 82
Subjects: Telescopes.; Lenses.