384 THE Microscope. 
BXCHANGES. 
This department is for the benefit of SuBSURIBERS 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 notity us when articles have 
been exchanged or sold. Dealers are referred to our advertising department. 
I aes SALE—Bausch & Lomb Model Microscope (No. 521 of their catalogue) as good 
ax 
as new, having been used but a few times. There are two objectives, a 1 inch and 
inch, one 2inch eye-piece, camera lucida, ete. Everything in perfect order. Will 
be sold cheap. Correspondence solicited. Address, 
S. G, Robbins, Sivery. Pa. 
ees 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 14 water immersion, 180°; cost 
$70, price $37.50; also, Spencer’s latest homo-imm., 1-10, 116°, B.*A., $52.50. 
Geo. H. Curtis, New Richmond, Clermont Co., Ohio. 
0 aa MicroscorE, Vols. I to IV inclusive. 
W. E. Swigert, Spencer, Owen Co., Ind. 
V ANTED—A copy of the ‘‘ Microscopical Bulletin,’ Vol I, No.5, August. 1884. for 
which I will send two interesting slides. 
M. S. Wiard, New Britain, Conn. 
WV } 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. 
O 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.N. Sherman, Kingman, Arizona. 
\j ANTED.— Good pathological material; will cut on shares, or give slides in ex- 
change. E. D. Bondurant, M, D., Tuskaloosa, Ala. 
OR SALE—A B. & L. Section Cutter, glass top, and micrometer screw, in perfect 
order, good as new, cost $7.50; will sell for $5. 
H. F. Wegener, 1305 S. Tenth St , Denver, Col. 
| NOR SALE—Slides of Bacillus Tuberculosis from sputa. Price $1.00 
Dr Wm. B. Canfield, 1010 N. Charles St., Baltimore, Md. 
| (YOR SALE—A Fresh copy of Kents’ Manual of the Infusoria. 
D. S. Kellicott, Columbus, O. 
OR EXCHANGE, OR SALE—A Bausch and Lomb best one-sixth, new; cost $40. 
Will exchange for good set of opticians’ trial lenses D.A Baldwin, 
Englewood, N. J. 
y ANTED—Diatoms in sitw, and Pediculi, the latter either in dilute alcohol or car- 
bolic acid, in exchange for Diatoms, recent and fossil, and miscellaneous ob- 
jects for mounting. M. A. Booth, Longmeadow, Mass. 
i ras peat cash, good heliostat, also polariscope. C, Drawer G, 
Ansonia. Conn. 
\ ILL EXCHANGE Vol. II. Paleontology of the Ohio Geological Report for a 
! section cutter. A. F. Barnard, 
15 Woodland Ave., Oberlin, O. 
OR SALE—A Bausch and Lomb Harvard stand, A and C eyepieces,1 inch and 
one-fifth inch objectives, at a bargain, Box 1, Evanston, Ill. 
