THE MICROSCOPICAL ADVERTISER- 



Two Zentmayer Microscope stands as follows 

 Centennial binocular with mechanical stage, also glass-sliding 

 stage; separate nose-piece for wide angle objectives; 5 eye-pieces. 

 Walnut case. Cost ;^36o. Is offered as new: price ^175. 



Grand American monocular (nose-piece, fine adjustment) with 

 mechanical stage, centering on substage, 3 eye-pieces, mahogany 

 case. Cost $220. In perfect condition: price $75. 



Walter H. Mead, 65 Wall St., NEW YORK CITY. 



WANT, SALE AND EXCHANGE NOTICES. 



FOR SALE AT A BARGAIN. — A Beck New National Microscope with full line of accessories, 500 mounted 

 slides, etc. Address— A. C. GBUHLKE, Waterloo, Ind. 



FOR SALE. — A h inch objective (65°), Bausch & Lomb professional in good condition. 



J. CHKISTIAN BAY, Des Moines, Iowa. 



FOR SALE. — First class Botanical mounts, 25 cents. Send for list; also will exchange. 



I. PERCY BLACKMAN, Sandy Hook, Conn. 

 MICROSCOPES. — I deal in all kinds of instruments, optical goods and drafting sup- 

 plies. Write me. HENRY H. BROWN, 52S 12th st,, Washington, D.C 

 FOR SALE. — ToUes 1-10 objective, 1.42 N A, one of his latest and best. Also 1-12 

 Powell & Leland apochromatic objective, 1.40 N A, new. 



C. E. BLAKE & CO., Adams Express Bldg, Chicago, 111. 

 FOR SALE OR EXCHANGE.— Stained Eiatoms from Keene, N. H. Price 50 cents. 

 Unstained slides of same, in balsam. Price 30 cents. 



WILLIAM LIGHTON, 2511 Seward St., Omaha, Nebr, 



FOR EXCHANGE. — 20 Portable Cabinets each 12 trays for 72 objects, some mahog 

 any : others solid rosewood, one Pillsbury's 20 boxes lor 500 slides, worth IVom $3 to $5 

 each ; in exchange for nice slides, Histological and Pathological not wanted, or for Mi- 

 croscopical books not already in my library. Wolle's Desmid W^anted. 



DR. MATHIAS COOK, Utica, N, Y. 



READ the nice stories in Lippincott's Monthly Magazine. You can save 50 cents, 

 (club rate) by subscribing for Lippincott through us. MICR. PUB. CO. 



FOR SALE. — A limited number of slides illustrative of the " Studies of the Histology 

 of various Mammalian tissues" can be had at 50 cents each . 



H. L. OSBORN, St. Paul, Minn. 



FOE SALE. — Nicely mounted slides of Rhinoceros horn, at 40 cents each. 



H. H. DAVISON, 41 Sumner St., Pautucket, R. I. 

 FOR SALE.— Pritchard's Infusoria (latest edition, colored plates) and Smith's Biitish 

 Diatomacete (2 vols., uncut). These works are very scarce and can only be got, a." in this 

 case, when a microscopist finishes using them. Price $60. 



No Sig., Care C. W. SMILEY. 

 WANTED.— A chemical balance. State price, degree of sensitiveness and condition. 

 F. L. J. BOETTCHER, 218 2nd St. N. E., Washington, D. C. 

 FOR EXCHANGE.— The Museum of Hamline University desires to exchange Atlan- 

 tic Shells, preserved specimens of Marine Zoology of microscopic slip slides for zoological 

 specimens especially Rodents in the flesh from Southwesten United States, Correspondence 

 solicited, HENRY L. OSBORN, Hamline Univ.,, St. Paul, Minnesota. 



ARRANGED DIATOMS. I furnish the most artistic arrangements of diatoms iu 



slides at $5.00 each. Your name can be made from different species. Roosters, hen and 



chickens, and bouquets of flowers in butterfly scales and diatoms from $5.00. Refer to the 



Editor of this Journal. M. H. Dalton, 1 Impasse des Bains, Asnieres, pres Paris, France 



RARE CACTI. Send 10 cents for list and a magazine for a year, also an illustration 



it of rare California bulbs and plants. LYON & COBBE, Los Angeles, Cal. 



