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Anonymous

"Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology"

"--_The Ophthalmic
Review_, London.
The book contains 110 Original Diagrams. Bound in cloth.
Price, $1.50 (6s. 3d.)
PUBLISHED BY THE KEYSTONE,
THE ORGAN OF THE JEWELRY AND OPTICAL TRADES,
19TH & BROWN STS., PHILADELPHIA, U.S.A.
* * * * *
OPTOMETRIC RECORD BOOK

A record book, wherein to record optometric examinations, is an
indispensable adjunct of an optician's outfit.
The Keystone Optometric Record Book was specially prepared for this
purpose. It excels all others in being not only a record book, but an
invaluable guide in examination.
The book contains two hundred record forms with printed headings,
suggesting, in the proper order, the course of examination that should
be pursued to obtain most accurate results.
Each book has an index, which enables the optician to refer instantly to
the case of any particular patient.
The Keystone Record Book diminishes the time and labor required for
examinations, obviates possible oversights from carelessness and assures
a systematic and thorough examination of the eye, as well as furnishes a
permanent record of all examinations.


Pages:
327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351