BAUSCH & LOMB 

 BALOPTICON MODEL C 



IS a lantern of wide scope. Designed especi- 

 ally for schools unable to pay for more ex- 

 pensive apparatus, it has been constructed also 

 with a view to use by churches, societies, and 

 the home, where the lantern is coming daily to 

 play a more important part. 

 t[ Send for descriptive circular. 



DDICy ISA LITTLE MAGAZINE OF LENS 

 i i\ I U 1V1 INFORMATION. SEND FOR COPY 



•JOUR NAME ON A FIELD GLASS, PHOTOGRAPHIC LENS, MI- 

 CROSCOPE, LABORATORY APPARATUS, SCIENTIFIC OR ENGI- 

 NEERING INSTRUMENT IS A MARK OF QUALITY. 



Bausch & Lomb Optical Company 



Carl Zeiss, Jena 

 Offices 

 New York 

 Boston 

 Chicago 



George N. Saegmuller 

 San Francisco 

 Washington 

 London 

 Frankfort 



ROCHESTER, N. Y. 



The New 

 Reflecting Lantern 



*p 



For showing 1 on the screen opaque objects, book 

 Illustrations, engravings, and lantern slides. 

 It is the most perfect instrument of its kind. 

 It has a detachable Book-Holder. 

 It concentrates all light on the object. 

 It shows printed matter correctly. 

 It is in use at 



Harvard, Cornell, U. of P., Leland 

 Stanford, Girard College and 

 hundreds of other institutions. 



Wireless Telegraph Outfits 



For school room and experimental work. Com- 

 plete sending and receiving stations. 



Lantern Slides — Microscopic Slides 



Illustrating Botany, Geology and other sciences. 



Lists on application. 



WILLIAMS, BROWN & EARLE, 



Oept. N, 918 Chestnut Street, Philadelphia, Pa. 



WATSON & SONS' 



MICROSCOPIC OBJECTS 



Every Microscopist, no matter in what de- 

 partment he may be interested, will find speci- 

 mens of interest and rarity listed in Watson's 

 Catalogue of Microscopic Objects. It is a 

 classified list representing a stock of more than 



40,000 CHOICE SPECIMENS 



Each guaranteed typical of the structure it 

 represents. These slides are used for teaching 

 and examination purposes throughout the 

 world. The series comprise illustrations in 

 Histology, Pathology, Zoology, Bacteriology, 

 Hematology (including Malaria), Botany, 

 Entomology, Geology, Diatomacese, etc., etc. 

 Amateurs will find in this list many desirable 

 additions for their cabinets, from Is. up. 

 The above list will be mailed free on request. 



WATSON & SONS, Microscope Manufacturers, 



WHOLESALE AND RETAIL 



313 HIGH HOLBORN, LONDON,. ENGLAND 



Established 1837. Awarded 42 Gold and other medals— micro- 

 scopic Objects may be conveniently sent to the U.S.A. by parcel post. 

 American Agents: The Scientific Shop (A. B. Pobtib) Rooms 1230- 

 124o Monon Building, 324 Dearborn Street, Chicago, through whom 

 orders should be sent. 



QUALITY! QuAjJTY!!QuA,LlTY!!! 



VANILLA CHOCOLATE 



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 IS BY FAR THE BEST 



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FAMILY COOKING & BAKING CHOCOLATE 



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ALL OUR COCOA 8 CHOCOLATE PRODUCTS ARE RICH IN THAT 

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SOLD AT OUR STORES 6 BY GROCERS EVERYWHERE. 



