it 



The Invisible World 



» 



Our name, hacked 

 hu over half a 

 cenlurv of experi- 

 ence, is on all our 

 products — lenses, 

 microscopes, field 

 glasses, projection 

 apparatus, engi- 

 neering and other 

 scientific inslru- 

 ments. 



is made one of the most interesting and 

 popular subjects of the school curricu- 

 lum by the use of the microscope — 

 bringing the " unknown and unseen" 

 right before the pupils' eyes. 



^au$cli"'|oniD 



Microscopes 



are used In almost all schools and 

 colleges where work of this nature is 

 undertaken. They are characterized 

 by practical utility, scientific accur- 

 acy and optical efficiency. Of our 

 numerous models, the BH-2 has many 

 features that specially commend it for 

 class work. 



Price, $31.50 

 Special prices to Schools 



Write to-day for our new Booklet 

 8A on " School Equipment " and 

 " A Manual of Elementary Micro- 

 scopy." 



Bausch y Ipmb Opt'ca^ ©• 



«IW yoatt WASHINGTON CHtCAOO BM.lt ntANCIS«0 



4.OH0ON liOCHCSTCli,N.Y. ■^»AHKr9^T.* ' 



CANDIES OF RARE QUALITY 



"(V)y FAVORITES" 



NUTTED CHOCOLATES ONLV 



OnlyMateri 



of iK* 

 Highe^ Grades 

 Scientifically 

 Blended are Used 



On the 

 Cnaracter « 

 Cancly Depends 

 its Fitness 

 for Gift Making 



Sold by our Sales Agents Everywhere 

 in Three Sizes$Ii)0-50<t-25^ 



Refracting and Reflecting 



Astro nomical Telescopes 



Standard and Portable 



Visual and Photographic 



OBJECTIVBS 



Computed by our associate 



DR. F. R. nOULTON 



{Chicago University) 



OBSERV ATOR IBS 



Specula, Planes, Eyepieces, etc. 



lUustralion shows 6-in. with pneumatie dock. 



Photographs and Circulars on request 



LOHflANN BROS. 



SREENVILLE, OHIO :s ;: U. S. Ael 



