THE MICROSCOPlCAlv JOURNAL ADVERTISER. 



FOR BALaE. 



Two Zentraayer 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. The finest preparatious of insect atiatoiny, mounted neatly and at very low prices, 25 cents, 



35 cents, 50 cents. 



Aquatic Beetle [Dylisctis) showing compound eyes. Mouth parts of Hynienoptera — sting poison sacs. 



Cricket {Ooryllm) — wing of male and organ of hearing. Male organs of Diptera (Musca). 



Lightning bug (Photinus pyralis) entire. Same— parts, lanterns, testicles, ducts. 



Di/tucus marginalis — tibia, maxillae, antennae, trachea, spiracles, &c. 



Correspondence invited. For quality of work refer to Editor of this Journal. FR. DIENELT, Loda, 111. 



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

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



THE AMERICAN MAG.\Z1NE OF NATURAL SCIENCE is a popular illustrated Magazine for all who love 

 the great world of nature. If you are interested in any branch of Natural Science it will please you. Fifty ccntg 

 a year with premium. Samples for stamp. FRED R. STEARNS, Editor, Sac City, Iowa. 



FOR SALE. — A 1-5 inch objective by Guudlach, 135° aperture : resolves 15 of the 20 

 diatoms on the Thum test-plate ; an excellent objective in perfect order. Price $13.00 ; 

 maker's price $25.00. 



DR. ALFRED C. STOKES, 527 Monmouth Street, Trenton, New Jersey. 



FOR SALE. — A 2 inch objective (65°), Bausch & Lomb professional in good condition. 



J. CHRISTIAN BAY, Das Moines, Iowa. 



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



I. PERCY BLACKMAN, Sandy Hook, Conn. 



WANTED. — Material containing Foramiuifera, recent or fossil. Will give other ma. 

 terial named slides of Foramiuifera or miscellaneous slides in exchange. 



F. S. MORTON, 158 Cumberland St., Portland, Maine. 

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

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



WILLIAM LIGHTON, 2611 Seward St., Omaha, Nebr. 



WANTED.— A Zeiss binocular eyepiece. D. A. NASH, 24 State St., New York. 



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

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

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

 croscopical books not already in my library. WoUe's Desmid Wanted. 



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. 



