i 4 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.) 



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. 



w 



ILL exchange rubber cement for good slides. EUGENE PINCKNEY, 

 Dixon, 111. 



H 



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. 



1WILL exchange good, histological for other first class mounts. S. G 

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



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 y 2 . 

 F. O. Jacobs, Newark, O. 



WILL EXCHANGE. — One copy of Leidy's Rhizopods of North America, 

 for objectives or accessories. Address, C. H. STOWELL, Ann Arbor, 

 Mich. 



NA. RICHARDS, of St. Louis, Mich., has for exchange a few mounts 

 . of double-stained and single-stained vegetables; also a number of well- 

 mounted injected specimens. 



EXCHANGE. — Untreated diatoms and miscellaneous material in large 

 variety to exchange for good prepared material for mounting of any kind. 

 M. A. BOOTH, Longmeadow, Mass. 



FOR SALE. — One Tolles' 4-10 objective of 100 ° adjustable; also one \]/ z 

 inch objective of 23 by William Wales. Both made to order and first- 

 class. A. L.' WOODWARD, Syracuse, New York. 



WANTED. 

 The next meeting of the American Society in Rochester; 

 And Professor S. A. Lattimore the president of it. 

 To find a more ingenious man than Mr. Griffith. 



To know how many generations before Heitzmann's theories will be accepted. 

 A new way to induce subscribers to renew promptly; 

 Or some one to pay our printer's bill. 

 To see the Koch-bug that causes headache, 

 That we may pierce him with a lance. 

 To vote for Professor S. H. Gage for first vice-president. 

 Answers to the question "Of what use is the microscope to pharmacists ?" 

 More names for our page of "Exchanges." 



