352 Tuer MICROSCOPE, 
BXCHANGES. 
This department is for the benefit of suBSCRIBERS who have microscopical appar- 
atus. 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 will please notify us when articles have 
been exchanged or sold. Dealers are referred to our advertising department. 
] . OR SALE CHEAP—A Bausch & Lomb Polariscope in first-class condition. 
, Address W.J., 32 West Noble St., Columbus, Ohio 
OR EXCHANGE—A Hailes’ “ Poly-Microtome” (an automatic microtome for 
freezing or parafiine-embeddiug), in exchange for a Kodak camera, or other 
good ‘‘ detective.” C. E Hanaman, Box 27, Troy, N. Y. 
OR SALE CHEAP—A Bausch & Lomb Universal Microscope complete, with 
objectives and accessories, perfectly new. Address, ‘ 
Prof. C. F. Emery, Ocean Springs, Miss. 
OR SALE—Vols. IV, V,-VI, VII, of THE Microscopes, bound in two volumes; 
fourth edition of Wyeth’s “ The Microscopist;’? Marsh’s,“‘ Section Cutting,” and 
Phin’s ‘‘ How to Use the Microscope,’ For cash only. 
H. M. Richards, 27 Ellery St.; Cambridge, Mass. 
OR SALE—Bausch & Lomb Model Microscope (No. 521 of their catalogue) as good 
as new, having been used but a few times. There are two objectives, a 1 inch and 
a ¥ inch, one 2 inch eye-piece, camera lucida, etc. Everything in perfect order. Will 
be sold cheap. Correspondence solicited. Address, 
S. G, Robbins, Sivery. Pa. 
OR SALE—A B. & L. Section Cutter, glass top, and micrometer screw, in perfect 
order, good as new, cost $7.50; will sell for $6. 
H. F. Wegener, 1305 S. Tenth St , Denver, Col. 
4 OR EXCHANGE—A Browning’s Student’s Spectroscope, for a microscope stand 
or other apparatus. C. E. Norton, M. D., Lewiston, Me. 
5 Ebke SALE—Fine collection of 144 choice microscopic objects by Wheeler, Moller 
Watson, and others, including Webb’s celebrated micro-writing, arranged Dia- 
toms, Type-plate of Echinoidea, Podura and other tests, in box with lock and key, 
$10, all new. Send for list. Also, Tolles’ first-class 4% water immersion, 180°; cost 
$70, price $37.50; also, Spencer’s latest homo-imm. 1-10, 116°, B.JA., $52.50. 
Geo. H, Curtis, New Richmond, Clermont Co., Ohio. 
eager MOUNTS for sale or exchange; hair of Ornithorhynchus paradoxus; mum- 
my cloth, three thousand years old; sections of bark from Charter Oak tree. 
Address, Prof. H. M. Whelpley, St. Louis, Mo. 
ae Microscope, Vols. I to IV inclusive. 
W. E. Swigert, Spencer, Owen Co., Ind. 
Vy ANTED—Several good objectives and eye-pieces; must be in first-class condition. 
State full particulars. Also want unmounted material. Will exchange or buy. 
Correspondence invited. Chas. von Hiff, 20 Palmetto St., Brooklyn, N. Y. 
y ANTED—A copy of the ‘‘ Microscopical Bulletin,’ Vol I, No.5, August. 1884. for 
which I will send two interesting slides. a 
M. S. Wiard, New Britain, Conn. 
ANTED—Odd volumes and numbers of microscopical periodicals and books on 
the microscope. Will give microscopical periodicals in return. Send list of 
what you have and want. 
Prof. L. A, Lee, Brunswick, Me. 
YO EXCHANGE.—Zeiss-Abbe condenser complete, 2in. bull’s eye condenser, Ex- 
celsior dissecting microscope, Schrauer’s Improved Sterling microtome, solid 4 
in. eye piece, all new, for good American sub-stage condenser, machine microtome, 
Polarizer, or objectives. W.WN. Sherman, Kingman, Arizona. 
RAY ono roee pathological material; will cut on shares, or give slides in ex- 
change. E. D. Bondurant, M, D., Tuskaloosa, Ala, 
