by American Optical Company
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"Reading" in the classroom
Optical machinery, tools and supplies
SPENCER Scientific Instruments [ with pr...
Illustrated catalogue of spectacles and ...
The otoscope
Talks with the practical optician
Advances in Electronics and Electron Phy...
Mirrors, prisms and lenses
The principles and methods of geometrica...
Duke-Elder's Practice of refraction
The art of game design
Basic photo