32 Tfe Microscope. 



EXCHANGES. 



This department is for the benefit of subscribers loho have microscopical apparatus, 

 material or books which they wish to exchange, and such wants will be inserted free of 

 CHARGE. The number of insertions given will depend upon the number of exchanges 

 received each month. Subscribers loill please notify us when articles have been exchanged 

 or sold. Dealers are referred to our advertising department. 



WANTED TO PURCHA.se -America/? Journal of Microscopy, Vol I, 1876, Nos. 1 and 

 8; Vol. III. ISrr, No. 2; Vol. IV, 1879. Nos. ?,. .5 and 6; Vdl. V, 1880, No. 7; Vol. VI, 

 1881, No. 5; American Monthly Microscopical Journcd. Vol. I, 1880, Nos. 5, 7, 9 and 11; Vol. 

 II. 1881, Nos. 1, 8, 9, 10, 11 and 12; Vol. VI. 1885, No. 10: Vol. VII. 1886, No. 11; American 

 Quarterly Microscopical Journal, Vol. I, 1879, Nos. 1, 2, H and 4; The Microscope, Vol. I, 

 1881, complete. Address C. C. MELLOR, 77 Fifth Ave., Pittsburgh, Pa. 



OUNTS OF FCETAL (5 MONTHS) LUNG, section across entire lobe, 1-2000 in. thick, 

 beautifully stained, in exchange for flrsi-class Pathological Slides. 



VV. C. BORDEN, M. D., U. S. A., Fort Douglas, Utah. 



ISTOLOGICAL, PATHOLOGICAL AND MISCELLANEOUS BIOUNTS for exchange 

 by H. W. WESTOVER, M. D., St. Joseph, Mo. 



M 



H 



T 



UBES OF CLEANED DIATOMS, in exchange for mounted slides or good material. 

 For list, etc., address A. B. AUBERT, Orono, Penobscot Co., Maine. 



FOR EXCHANGE. — Slides of vegetable and animal sections, all double-stained, new 

 process, for hair of full-blooded Indian, elephant's beard and tail, trichina meat, and 

 well-mounted slides. J. D. BECK, 305 Church St., Williamsport, Pa. 



OR EXCHANGE.— One dozen well-mounted histological and pathological sections. 

 Will exchange for some recent-edition book on histology or p.atliolozy. Address 



L. G. AVILLE, Avoyelles Parish, Marksville, La. 



F 



MOUNTS OF S.1L1CINE, PURE UREA. AND OTHER CRYSTALS, by an entirely new 

 process, and the most beautiful ever seen, in exchange for strictlv first-class patho- 

 logical slides only, or for sale. FRANK L. JAMES, M.D., Box 56S, St. Louis, Mo. 



W 



ANTED — A microscopical slide cabinet containing about one thousand objects. Must 

 be in good condition. Send description, price, etc., to 



JAMES B. SHEARER, Bay City, Mich. 



G- 



OOD histological or pathological mounts for other first-cla«s mounts. 



S. G. SH.ANKS, M. D., 547 Clinton Ave., Albany, N. Y. 



FOR SALE— Beck Popular Binocular with complete outfit, 2-in., 1-in. and ^ ob. polari- 

 scope, parabola, double nose-piece, 3 sets eye-pieces, etc . in perfect order, only 

 tarnished. Price, «80. Address WM. H. SE.-?lMAN, Patent Office, Washington, D. C. 



WANTED— B. eye-piece (to fit Bausch & Lomb's smaller stands), a camera lucida, a stage 

 micrometer (metric preferred) and a good turn-table; also Carpenter, or Beale, on 

 the Microscope. Will exchange for above, books on Mineralogj- and Chemistry and general 

 literary works. Correspondence solicited. A. F. BARNARD, Bo.x: 152. Oberlin, O. 



E 



XCHANGE. — I have well-mounted slides of diatoms, also diatomaceous material which 

 I offer for curiosities or materials suitable for a cabinet. 



F. L. CAUCH, Carpentaria, Santa Barbara Co., Cal. 



LABELS for slides ; also, slides and material. 

 EUGENE PINCKNEY, Dixon, lU. 



EXCHANGE.— Will exchange slides of vegetable sections, double-stained, for other good 

 slides, preferably of the same nature. 



CHAS. E. BARR, 301 Clinton St., Cleveland, O. 



ANTED— Standard books on Rotifera, Infusoria, Diatoms, Algae, etc. Will exchange 

 general and scientiKc works for the above. 



JAMES E. WHITNEY, Rochester, N. Y. 



FOR EXCHANGE. — I have for exchange for mounted slides specimens of crystallized 

 quartz, microscopic and small, perfect crystals, crystals from one-half to three inches 

 in diameter, crystals containing floating particles, crystals containing cavities, and some 

 containing hornblende. State which you prefer, and 1 will endeavor to give satisfaction. 



D. M. FULLER, 154 Hamilton St., Albany, N. Y. 



w 



