i 4 THE MICROSCOPE. 



EXCHANGES. 



(Exchanges are inserted on this page without charge. Subscribers having 

 microscopic apparatus for sale or exchange can announce the same without 

 charge.) 



v OR SALE. — One copy of Leidy's Rhizopods of North America. Price, 

 $7.50. Address, C. H. STOWELL, Ann Arbor, Mich. 



FOR SALE. — Mounts of renal tube casts and double-stained blood cor- 

 puscles. $1.00 per slide. A. Y. MOORE, 53 Prospect St., Cleveland, 

 Ohio. 



ILL exchange rubber cement for good slides. EUGENE PINCKNEY, 

 Dixon, 111. 



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k OR SALE. — Zentmeyer's American Grand with Accessories. Cost $500. 

 Sold at a bargain. STEPHEN BOWERS, Falls City, Neb. 



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ILL exchange histological mounts for equally good slides. FRED. K, 

 SMITH, Ann Arbor, Mich. 



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AVE a large number of histological mounts for exchange. T. B, 

 STOWELL, Ph. D., Cortland, N. Y. 



ACARI INSECTS, Spermatozoa of Horse, Pathological and other well 

 mounted slides in exchange for Pleurosigma, Trichina, Diatoms, Stained 

 Bacteria, &c, &c. J. O. STILLSON, 504 Upper 2d St., Evansville, Indiana. 



WILL exchange good, histological for other first class mounts. S. G. 

 SHANKS, M. D., 547 Clinton Avenue, Albany, N. Y. 



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FOR SALE. — Two Oxy-Hydr. Projecting Microscopes — cheap. I. G. 

 LANGGUTH, 133-135 Wabash Avenue, Chicago. 



FOR SALE. — A Spencer % 115° or will exchange for a wide angle l / z . 

 F. O. Jacobs, Newark, O. . 



