

THERE are two pieces of Apparatus that the modem school which 

 would keep abreast of the tirr.es must have — a Microscope and a 

 Projection Lantern. 

 ^ For nearly forty years we have been engaged in the manufacture of 

 microscopes, and our instruments are to be found in schools all over the 

 country, and they are universally regarded as Standard. No time nor 

 effort nor expense has been spared to make them the best of their class. 



BAUSCH & LOMB BH4 MICROSCOPE 



is one recommeded for use in schools. 

 •A Write us for our New Prices on this instrument. They will interest yon, 



OUR NEW OPAQUE PROJECTOR 



is gaining a position similar to that enjoyed by our microscopes, which 



means that it is doing all that we claim for it. 



♦5 It will project successfully upon the screen in full view of the class 



opaque objects (post cards, photographs, illustrations from books, living 



material as well as inanimate objects, etc.). 



€j It is exceedingly simple in operation, is well constructed, and its use 



involves none of the difficulties found in the cheaper forms of projectors. 



9J We have also a combined^ lantern slide and opaque projector for those 



who desire a more complete instrument. <I Descriptive circular on request. 



Our Name on a Photographic Lens, Micro- 

 scope, Field Glass, Laboratory Apparatus, 

 Engineering or any other Scientific In* 

 <*a3*jJ^ strument is our Guarantee. 



Bausch & jornb Optical (o. 



Hew YOftK WASHINGTON CHtCACO SAN rttANCISCO 



1.0NDON [iOCH ESTER. N.Y. Frankfort 



Nature's Gifts. 



From the Cocoa Bean and the 

 Wheat, two of the greatest "food 

 value "plants Mother Earth ever 

 grew, is manufactured the most 

 perfect Luncheon Wafer in the 

 shape of 



Chocolate 

 Dipped 



Healthful 



Delicious 



Satisfying 



Nourishing 



Muscle-building 



Sold everywhere 





Refracting and Reflecting 



Astronomical Telescopes 



Standard and Portable 



'1 



Visual and Photographic 



OBJECTIVES 



Computed by our associate 



DR. F. R. flOULTON 



(Chicago University) 



OBSERVATORIES 



Specula, Planes, Eyepieces, etc. 



Photographs and Circulars on request 

 LOHHANN BROS. 



Illustration shows 5 -in. with pneumatic clock. 



GREENVILLE, OHIO 



U. S. A. 



