224 The Microscope. 



EXCHANGES. 



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

 material or books which they wish to exchange, and such loants will be given one insertion 

 FREE OF CHARGE. Dealers are referred to our advei'tising department. 



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OR SALE OR EXCHANGE— A flrst-class Tolie's ilry, j^ in. 100°. in perfect condition. 

 Price. $25. C. L.HETICOLAS. 635 Eighth St. N , Richmond. Va. 



FOR SALE— One copy Van Heurck's Synopsis Diatoms, Plates bound, best Hbrary, text 

 unbound, in perfect order. Price $40. Also 1-10 objective. Homo, im. 125 balsam 

 angle, made by Herbert R. Spencer in 1883. Cost $80, will sell for $55. Perfect order, 

 used very little. Address H. F. DOUGLAS, Fenton, Mich. 



FOR SALE— A Bausch & Lomb Investigator Microscope complete, with improved glass 

 stage and slide-carrier extra. Cost $75 only a few months ago, has not been used a 

 dozen times; is perfect in every particular. Will sell for 20 per cent, less than cost. 

 Correspondence solicited. Q. H. BRICKETT. M. D., Augusta, Me. 



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OOD BIOUNTS— Vegetal and various, for a simple section cutter. 



A. E. WARREN, Rio Vista, Va. 



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UEEN'S COMFORTABLE TURN TABLE in exchange for Rindfleisch Pathology, or 

 Dolley's Technology of Bacteria. A. L. HULDEN, 136 South St., Utica, N. Y. 



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OR SALE— A Zentmayer 8-10 and 1-5 objectives; also, a B. & C. eye-piece, in good 

 condition. The maker should be guarantee of quality. 



J. G. DENGLER, Sellersville, Pa. 



FOR SALE— A perfectly new Bausch & lomb Universal Microscope; has never been 

 used. This includes two eye-pieces, one with micrometer; a 3-4 inch and a 1-5 

 inch objective; a camera lucida, a test-slide, pliers, slides and covers. Purchaser receiving 

 in addition a copy of Carpenter's "Microscope and its Revelations," Stokes' "Microscopy 

 for Beginners" (new), Davis on Mounting, and Bausch's manipulations of the Microscope. 

 All in neat box with lock and key. Price $50. 

 A. H. STIEBELING, M. P., No. 138 Second St., New York City. 



FOR SALE — A very good microscope ; monocular, with case, eye-pieces and objectives, 

 all being as good as new. Will sell at a good bargain ; full particulars given. Address 

 (Correspondence solicited.) CHARLES VAN EIFF . 347 G reenwich St . N^wYorkOity^_ 



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

 general scientific and literary works for the above. 



JAMES E. WHITNEY, Rochester, N. Y. 



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OR EXCHANGE OR SALE— Double-stained Bacillus Tuberculosis slides. Will 

 exchange for histological or pathological mounts. 



F. T. MERIW ETHER, M. D., Asheville, North CaroHna. 



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 hornblend. State which you prefer and I will endeavor to give 

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



QUEEN'S "Physiological" microscope, complete incase and in perfect condition, with 

 one eye piece and 1-2 and 1-6 inch objectives and camera lucida. Will sell for $20, 

 or exchange for a high grade 1-2 or 4-10 inch objective— Gundlach or Bausch & Lomb 

 preferred. HORACE G. VVETHERILL. M. P., Trenton, N. J. 



FOR SALE— A Tolles 1-10 glycerine im 180°, a Wenhaus Reflex Illuminator, made by 

 Mr. Tolles to use with the above lens, and a Fasoldt Micrometer, 1-5,000 to 1-120,000, 

 all in fine condition and cheap. Best of reasons given for selling Address 



F. J. SCHAUFELBERGER, Hastings. Neb. 



R. JAMES E. REEVES, 2235 Chapline street. Wheeling, W. Va.. will dispose of a few 

 of his fine mounts of typhoid bacilli, grown on potato, 30th culture, etc. 



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WILL EXCHANGE slides of plants, bark, heart and tongue of swine, all double 

 stained, for good histological slides double stained with sulph-indigotate soda and 

 carmine. Satisfaction sure. Correspondence solicited. 



J. D. BECK. Box 10, Liberty, Tioga Co., Pa. 



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ANTED— Injecting syringe, case of dissecting instruments, and a valentine knife ; 

 will give fine slides or cash. 



HERBERT M. RICHARDS, Sadsburyville P. O., Chester Co., Pa. 



HAVE a very fine case for a microscope, 18 inches high and 8 inches square, inside. 

 Would exchange for a first-class H inch objective. 



A. W., No. 42 Allen St., Jamestown, N. Y. 



FOR SALE— Nachet microscope, manacular, slide carrier on stage, 4 objectives, Nos. 34, 

 1, 3 and 5, French; 2 eye pieces; bull's eye condenser: 24 objective makes an 

 excellent illuminator ; camera lucida ; forceps ; mahogany silk-lined lock case, slides, etc. 

 Cost 625 fr. Price, net. $75. Address 



C. A. FERNALD, M. P., 1483 Washington St., Boston, Mass. 



