THE OOLOGIST. 



15 



For Outside and Inside Measurements. 



For Naturalists, Oologists, Taxidermists, Mineralogists, Drawing Schools, &c- 



Graduated into 64ths of au inc* on one side, and lOOths on the other- g 



PRICES. 



Length of Jaws. 

 1*4, inch 



m ■■ 



4 inch— Pocket Size 



6 inch— " 



8 inch 2*8 



10 inch 2*i 



12 inch 37s 



Price 



$2.50 



3.00 



350 



4.(0 



... 5.1 



Sent bv mail postpaid to any part of the United State on receipt of price. 



These Calipers are made entirely oiit of Steel, carefully finished throughout, and the end of 

 the jaws and scale hardened. The tightening sc-ew acts in conjunction with a spring slide, so 

 it cannot injure the scale. For Oologist's use. this new 4 inch Caliper in exactly as good m 

 every particular a,s the $1.50 one. Offered in our regular catalogue— In fact, as the jaws are 

 longer it is reallv of greater, value. 



The many uses tha r . Sliding Calipers can he put to are non as well known as they miebt or 

 should be. among; Naturalists or those working to sizes or standards. This is mostly owing to 

 the Li,h prices, for which they have hereto "ore been sold, and in presenting the above style of 



SLaIDINQ GAIaIPRRS 



to my p trous, it is the intention to furnish them with an instrument that is Accurate, Reliable, 

 and of convenient and Neat Size, for a Moderate Price, which will bring them in the reach of all. 

 OO LO GISTS will find f he 4 inch, or at largest, the 6 inch size the most convenient for their 

 use. As specimens of all kinds are usually measured in 100th- inch. The utility of this valuable 

 instrument, can only be appreciated by giving it a trial. Send for one and be convinced. 



Address Frank H. Lattirt, Albion, N. Y- 



Scientific American 

 Agency for 



CAVEATS, 

 TRADE MARKS, 

 DESIGN PATENTS, 

 COPYR1CHTS, etc. 



For information and free Handbook write to 



MUNN & CO.. 361 Broadway, New York. 

 Oldest bureau for securing patents in America. 

 Every patent taken out by us is brought before 

 the public by a notice given free of charge in the 



SLJ> 



Largest circulation of any scientific paper in the 

 world. Splendidly illustrated. No intelligent 

 man should be without it. Weekly, S3.0W a 

 year; $1.50 six months. Address MUNN & CO., 

 Publishers, 3t>l Broadway, New York, City. 



STRAWBERRY PLANTS, 



ASPARAGUS ROOTS, 



SEED POTATOES. 



I have choice plants of twenty lead- 

 in g varieties of Strawberries, Tips of 

 the Ohio Raspberry. Extra Fine 2 year 

 old roots of Barr's Mammoth, Palmetto, 

 and Conover's Colossal Asparagus and 

 Fifty selected varieties of Seed Potatoes. 

 Will sell at low rates, or will exchang- 

 ed for desirable Eggs, specimens or 

 Books in Natural History. 



FRANK H. LATTIN, 



ALBION. N. Y. 



ALL future transactions in Birds Eggs should 

 he aod with ■•Lattm" must be based on the pric- 

 es given iu the New "Standard Catalogue." 



