B AUSC I & LOME NEW OPAQUE 

 PROJECTOR 



MAKES the successful projection of opaque objects (post cards, 

 photographs, illustrations from books, living objects, etc.) an 

 accomplished fact. 

 It projects pictures 4x4J& inches in size with brilliancy, even illumina- 

 tion and sharp definition. ,.,.,, . „ 



Its operation is exceedingly simple, and the apparatus is so weU con- 

 structed that its use involves none of the difficulties found in the cheaper 

 forms on the market. . , 



We offer also a combined lantern slide and opaque projector to those 

 desiring a more complete instrument. 

 Descriptive circular on request. 



BAUSCH & LOMB BH MICROSCOPE 



is especially designed for schools. The characteristic excellence of its me- 

 chanical, and its correct optical construction, combined with its low price, 

 make it an instrument which no up-to-date school can afford to be 

 without. Send for our new prices on this popular microscope. 



Our Name on a Photographic Lens, Micro- 

 scope, Field Glass, Laboratory Apparatus, 

 Engineering or any other Scientific In- 

 strument is our Guarantee. 



Bausch & lomb Optica! (9 



•JtW YORK "WASHINGTON CHICAGO- 



LONDON ROCHESTER. NY. 



SAN FRANCISCO 

 fRANKFORT 



J8? 



YOUR "FIRST CHOICE 

 ffOm LAST CHOICE 



YOUR CHOICE AT*U TIMES 



/ 



FRTSB, PURE, TJEIFClOUS 

 BONBONS-^AND .CHOCOLATES 

 MWAYS ACCEPTABLE: GIFTS 



tr m f AvoRms" 



ItflTTIDimoCOLAlES '0HLT. 



SOLO AT OUR RETAIL STORES 

 AND BY SALES AGENTS 



<^Srt COCOA >g& 



U?* -THE BEST HA0E.v^^ 



I& 5° LUBLE and digestible:^ 



FOR SALE 

 £VERYWHER£ 



r e&&ss$! 



HsAJj 



Refracting and Reflecting 



Astronomical Telescopes 



Standard and Portable 



Visual and Photographic 



OBJECTIVES 



Computed by our associate 



DR. F. R. riOULTON 



(Chicago University) 



OBSERVATOR IBS 



Specula, Planes, Eyepieces, etc. 



mm ^mmrnm^ 

 Illustration shows 5 An. with pneumatic clock. 



Photographs and Circulars on request 

 LOHJ1ANN BROS. 



GREENVILLE, OHIO : : : : U.S.A. 



