THE GUIDE TO XATURE—ADVERTISEMEXTS 



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PUBLISHERS NOTICES 



Tis not in moitais to COMMAND success, but well do more, Sempronius, we'll DESERVE IT. 



— Addison: Cato 



Awards for Optical Excellence. 

 The record made by the Bausch & 

 Lomb Optical Co. at the Panama-Pa- 

 cific Exposition is one that is probably 

 unequalled by any of the other exhibi- 

 tors at San Francisco. The awards 

 granted aggregate four Grand Prix, or 

 highest possible awards, one Aledal of 

 Honor and one Gold Medal. The award 



THE WONDERFUL MIRRORS. 



in each case was the highest prize 

 granted. There is good reason to be- 

 lieve that no one company in any other 

 department of the great Exposition 

 received such high honors as did 

 Bausch & Lomb. In fact the company's 

 representative at the Fair writes that 

 the other exhibitors, regardless of their 

 product or how they were grouped onlv 



received one Grand Prix and in most 

 cases only a Gold Aledal. 



The four classes in which Bausch & 

 Lomb Optical Co. received the Grand 

 Prix are Optical Instruments, Balopti- 

 cons. Engineering Instruments and 

 Range Finders. The first division, 

 called Optical Instruments, is com- 

 prised of seven classes and covers the 

 company's Opthalmic Lenses, 

 microscopes, parabolic and 

 Mangin mirrors. Field Glasses, 

 microtomes and magnifiers. 



Opthalmic lenses, or the len- 

 ses used in eyeglasses and spec- 

 tacles, are one of the chief pro- 

 ducts of the Bausch & Lomb 

 plant and many million pairs 

 per year are manufactured. 

 Notwithstanding this quantity 

 production, the highest stand- 

 ard of scientific accuracy and 

 precision is maintained and 

 every single lens is subjected to 

 rigid inspections before leaving 

 the factory. Within the past 

 year Bausch & Lomb have in- 

 troduced in America two new 

 types of lenses invented by their 

 associates, the Carl Zeiss 

 ^^'orks. One of these is the 

 Punktal, which is described as 

 a perfectly corrected opthalmic 

 lens and which is rapidly com- 

 ing into favor in preference to 

 the ordinary spectacle lenses 

 heretofore used. 

 The second t3^pe is the Katral, a lens 

 which restores nearly normal vision to 

 persons who have been operated upon 

 for cataract. The Punktal and Katral 

 lenses are acclaimed by scientists as 

 the greatest achievement thus far at- 

 tained in this branch of optics. 



The superior quality of all Bausch 

 & Lomb optical instruments is gener- 



