66 



THE MICROSCOPE. 



[May, 



A Mounting Outfit. — The following outfit is sufficient for 

 general microscopical work, not including section-cutting; and 

 while it mav be procured from the dealers all ready for use and 

 even packed in a box, one can often make a considerable saving 

 in money bv collecting the items himself. 



i Turn-Table. 



i Pair Cover Forceps. 



i Knife. 



i Pair Steel Forceps. 



2 Needle-Holders, Bone Handle. 



i Pair Scissors. 



i Nest of Saucers. 



6 Dozen Glass Slips. 



]/ A Ounce Circles, assorted. 



i/£ " Squares, " 



i Dozen Block Tin Rings. 



i " White Metal Rings, Beveled. 



i " Ebonite Rings. 



ioo Square Labels. 



2 Camel's-Hair Brushes with Handle. 



y 2 Dozen Spring Compressors. 



i Brass Table, with Lamp. 



i Dropping Bottle. 



2 " Tubes. 



2 Dipping Tubes. 



14 Dozen Watch Glasses. 



1 Wide-Mouth Jar. 



1 Bottle of Pure Glycerin. 



1 " Oil of Cloves. 



1 " Absolute Alcohol. 



1 " Magenta. 



1 " Methyl A, Green. 



1 " Pure Benzole. 



1 " White Zinc Cement. 



1 " Gold Size. 



1 " Brunswick Black. 



1 Tube Canada Balsam. 



1 Capped Bottle of Balsam. 



INSTRUMENTS DESCRIBED. 

 By the Maker. 



-II. 



The Library Microscope. — The Bausch and Lomb Optical 

 Company of Rochester, N. Y., wrote as follows : 



"We believe that our Library Microscope with society screw, 

 equipped with i-inch eyepiece, i-inch objective, will meet the 

 wants of the Agassiz Association, and other young people, as the 

 power is sufficiently high for beginners in natural history ; and, as 

 you say that price is an object, we believe that it will meet with 

 your wants as such. You will find the above outfit (stand, eye- 

 piece, and i-inch objective) listed in our catalogue as D 1, which 

 we will be pleased to furnish at $16.00, as listed in our catalogue. 

 The Library Microscope equipped with 2-inch eyepiece, i-inch 

 and J-inch objectives, we can offer at $30.00. 



" We, in all cases, however, recommend a microscope to which 

 at anytime the possessor can attach accessories, and would there 

 fore recommend our Model Microscope, it having a coarse and 

 fine adjustment, also substage, which would be preferable. The 

 party owning it would not have to exchange it later for one hav- 

 ing these attachments. We would be pleased to furnish a Model 

 stand, with i-inch eye-piece and i-inch objective, for $31.00. 



The Librarv stand has a draw-tube and society screw. The 

 eyepieces are of Continental pattern ; the mirror concave, swings 

 so as to give oblique illumination, or can be brought above the 

 stage for illumination of opaque objects. The stage has spring 

 clips. The rack-and-pinion adjustment is delicate and suited to 

 high power objectives." 



