PRACTICE AND 



PRECEPT 



both have their value in subjects like Physi- 

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 training is made a hundred times more val- 

 uable by having the actual, practical demon- 

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colleges use 

 BH-2 Microscope 



{auscli''[oml> 



Microscopes 



— the standard of optical efficiency and mechanical accuracy for many 

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 rovolving dustproof nosepiece, and carrying case with lock and key. 

 Magnificatiotu, 75 and 320 diameters. 



Price $3 1 .50. Special Prices to Schools. 



Write today for our new booklet 8-A on "School Equip- 

 ment " and "A Manual of Elementary Microscopy" 



Our name, hacked by ooer half a cenlurs of experience 

 is on all our products — Lenses, Microscopes, Field 

 'OH Glasses, Projection Apparatus, Engineering, and other 

 scientific instruments, 



Bausch ^ Ipmb Optical ®. 



«tW TOftK WACHIHCTOH CHICAGO SAM r%ANCMCO 



I.ONDON ROCHESTER,. NY. *^**«"ro»T. 



CANDIES OF RARE QUALITY 



"(V)y fp/ORITES" 



NUn ED CHOCOLATES ONLV 



0»^Mater) 



H^esi Grades 

 Scieniificaljy 

 Blended are Used 



On ike 

 Cnaracier ci 

 Candy Dependa 

 its Fitness 

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Sold by our Sales Agents Everywhere 

 in Three Sizes $1jOO-5(K-25^ 



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Astronomical Telescopes 



standard and Portable 



Visual and Photographic 



OBJECTIVES 



Computed by our associate 



DR. F. R. nOULTON 



{Chicago Universiiy) 



Illustration shows 5-in . with pneumatic dock 



OBSERVATOR IBS 



Specula, Planes, Eyepieces, etc. 

 Photographs and Circulars on request 



LOHriANN BROS. 



mEENVILLB, OHIO ss si U. S. Ao 



