Not a Toy But A 

 Scientific Instrument 



Lecturers who require a projection apparatus of scientific accuracy 

 will find every optical and mechanical requirement satisfied in the 



pauscK jomb 



Balopticon 



The Perfect Stereopticon 



Indispensable to Schools and Colleges for illustrating; study courses 

 — widely used for Travelogues — a constant source of entertainment 

 in the home. Projects brilliant, sharply defined images from all 

 regular lantern slides or slides made from your own negatives. Can 

 be easily arranged to project photos, post cards, maps, etc. Opti- 

 cally and mechanically perfect. Simple to operate. Extremely 

 durable. 



Model C Balopticon $25 up. Combined Balopticon 

 for both lantern slides and opaquo objects $80 up. 



Send for an illustrated circular and see the different models. Send 

 today. 



Bauscfi #lpmb Qptical ©. 



550 ST. MM. STRUT aOCHMTKR. H.X 



New York Washington Chlcag* San Francisco 



CANDIES OF RARE QUALITY 



My FAVORITES 



NUTTED CHOCOLATES ONLV 



of the 

 Highest Grades 



at* A ■■ 



Scientifically 

 Blended are Used 



Oh the 

 Character of 



Candy Depends 

 its Fitness 

 for Gift Making 



Sold hry our Sales Agents Everywhere 

 in Three Sizes SLOO-50^25* 



Refracting and Reflecting 



Astronom ical Telescopes 



Standard and Portable 



Visual and Photographic 



OBJECTIVES 



Computed by our associate 



DR. F. R. ITOULTON 



(Chicago Umversitg) 



[Uustration shows 5-in. with pneumatic clock. 



Specula, Planes, Eyepieces, etc. 

 Photographs and Circulars on request 



LOHHANN BROS. 



^BBENVILLB, OHIO :: :: U. S. sV, 



