Supplies for 



the Botanist 



Tripod Dissecting Microscope 



A convenient and portable instru- 

 ment for botanists, as it can be used 



for dissection when mounted, or the 



S 30 



lens may be unscrewed and used as 



a pocket glass. It gives a large, clear image. 



Triple Aplanats 



This magnifier consists of a 

 crown lens cemented between 

 two flint lenses and is thoroughly achromatic. It 

 gives clear, flat images, free from distortion. The 

 mountings are German silver, nickel plated. 



Coddington Magnifier 



This magnifier gives clear 

 and perfect definition. The 



OIAMETEB, 3-4 l«. $ 1 .50 ""O^W'^g^ ^''^ "^^^'y ^'^^^^^ 



and nickeled. 



SEND FOR BOOKLET OF MAGNIFIERS AND READERS 



Bausch & Lomb Optical Co. 



Rochester, N. Y. 



New York - Boston - Washington - Chicago - San Francisco 



$3.25 



When answering advertr-icment mention Mycolcgical Bulletin. 



