Method of determining the focal distance of single or combined lenses
Contributors: Tweedy, John, 1849-1924, former owner; Royal College of Surgeons of England
Publisher: Robert Hardwicke
Published: 1873
Place of publication: London
Language: eng
Subjects: Eyeglasses
Notes: Signed at end 'W. Laidlaw Purves'

This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

The Royal College of Surgeons of England.