132 
THE YOUNG SCIENTIST. 
EXCHANGES. 
Only those who are yearly subscribers, and whose names 
are entered on our books have the privilege of inserting ex- 
changes. 
Exchanges must be on separate slips of paper or postal 
cards. If mixed with business matter in letters or cards they 
are filed away and never reach the printer. 
Exchanges must not exceed thirty words. 
Buying and selling belong to the advertising department. 
We reserve the right to omit the exchange column, Avhen 
we have not room for it, and the amount of space at our dis- 
posal will regulate the number of insertions given to each 
exchange, the preference being always given to those v/ho 
have not previously used our columns. 
"Crystallography" (40c.); "Electricity" (40c.); "Se- 
lection and Use of Microscope," abridged, (30c.) Either in 
exchange for " Workshop Companion," or two for " The 
Microscope," by Ross, or offers. C. H. Denniston, Pul- 
teney, N. Y. 
A printing-press, chase 5 by 7 inches, in good order; 
will exchange for a large self-inking press or type. A. W. 
Barrett, Canajohaiie, N. Y. 
Home Medical Battery, cost $7; Lemair's Field-Glass, 
No. 2202 of Queen's Catalogue, cost $15.50; Achromatic 
Spy-Glass, power 25 times. To exchange for books or 
offers. Emerson Heilman, Heilmandale, Pa. 
Silver watch, key-winder and Home Works, for good mi- 
croscope or offers. Wm. Hodgson, 128 Mangin St., New 
York City. 
A small collection of coleoptera, comprising 100 species 
and 300 specimens, all correctly named, in exchange for 
bird-skins, insects, books, or eggs. Emil Laurent, 621 Mar- 
shall St., Phila., Pa. 
A small magic lantern. Ruby pattern, with twelve slides, 
for a good book on Entomology, with illustrations. Willie 
R. Hotchkiss, Morrisdale Mines, Clearfield Co., Pa. 
Wanted, Thompson's " Witchery of Archery." Must be 
in good condition. Write before you send. J. Anthony, 
Jr., Coleta, Whiteside Co., Illinois. 
A telescope worth $3.50, for a self-inking printing-press 
and outfit; chase not less than 2^ by 3^4 in. Eddie Judd, 
260 Connecticut St., Buffalo, N.Y. 
To exchange for offers: $20 scroll-saw, Seneca Falls 
make, $4 Bailey circular plane, set of Auburn metallic 
pilanes, brass-bound four-foot rule, fourfold, Traiit's patent 
combined plow, dado, etc., cost $7. F. A. Rappleye, P.O. 
Box 12, Farmer Village, Seneca Co., N.Y. 
Bee Hive wanted ; one of the old-fashioned straw 
"skeps"; say what you would like in exchange. Apis, 
care of Young Scientist, 49 Maiden Lane, N. Y. 
A first-class type writer, in excellent condition, cost 
$125.00, to exchange for good microscope, telescope, or 
valuable scientific books ; send full particulars. A. B., Box 
114, Lewiston, Maine. 
A $30 stencil outfit (Spencer's) for a self-inking printing 
press in good condition, chase about 6 xg; rich ores and 
minerals of Idaho for scientific and instructive books, print- 
ing press, type, etc. J. P. Clough, Junction, Lemhi Co., 
Idaho. 
Wanted pyrites of iron from Colorado gold mines in ex- 
change for sea shells and other gems; send list of what you 
have to exchange. S. Ferguson, Eureka Springs, Arkansas. 
Scientific specimens of various kinds for same. Geo. E. 
Frazier, Caldwell, Ohio. 
A banjo in good condition, two pairs of rosewood bones, 
three splendid games, and a fine set of drawing instruments, 
for a good cornet, viola, violincello or double bass. L. B. 
Hill, Kalamazoo, Mich. 
Lester W. Mann, Randolph, Mass., Box 162, has Demas 
scroll saw, lathe and tools, emery wheel; $20 worth pat- 
terns; Smithograph; large harmonica, cost $1.75; novel- 
ties in seeds ; for large self-inking press or offers. 
10 volumes Chambers' Encyclopaedia, American Book 
Exchange edition (cloth) ; Bonanza printing press, chase 
3x5, card type, ink roller ; spyglass, power 10 times ; for 
French triplet, 1-5 in., or offers. H. P. Nichols, P. O. Ad- 
dress, Bridgeport, Conn. 
A good telescope, also foot-lathe and saw combined, each 
worth $10.00, for shells, fossils or relics. Independent, 
Conncautville, Crawford Co., Pa. 
Birds' eggs to exchange for others ; send list of what you 
have to exchange. Emil Laurent, 621 Marshall St., Phila- 
delphia, Pa. 
Twelve or fifteen volumes of the American Agriculturist 
to exchange for scientific books or offers. W. H. Osborne, 
Chardon, Ohio. 
J. D. Rice, P. O. Box 473, Trenton, N. J., would be 
pleased to correspond with mineralogists for the purpose of 
exchanging specimens and ideas. 
To exchange, my collection of nearly half a thousand 
rare postage stamps with catalogue, for second-hand Flo- 
bert rifle ; must be in good condition. H. E. Whitman, 
Station M, New York. 
I have a large assortment of foreign stamps to exchange, 
also Confederate money. Collectors send sheet and I will 
return it with mine. Box No. 2, Coeymans, N. Y. 
Electric bell engine, cost $15 ; pair of analytical scales, 
cost $10 ; pair of Bell Telephones to exchange for a printing 
press, watch or offers. Geo. N. Bigelow, Box 754, Palmyra, 
N. Y. 
Any person wishing to trade bird's eggs may apply to 
me and I will send them my list of bird's eggs. I have only 
a few at present, but am receiving a number every month. 
A. G. G., Box 26, Summit, New Jersey. 
Minerals of Idaho for Standard Works on the Horse — 
Wallace's Registers and turf journals. Wanted, also other 
useful books, bound and in good condition. Many varieties 
named in my list. J. P. Clough, Junction Lemhi Co., 
Idaho. 
To exchange for offers first four (fifth when comp'eted) 
bound volumes of Young Scientist. J. N. Brooks, P.O. 
1468, N. Y. City. 
Wanted engraver's tools with book of instructions, for a 
Victor Press, with cabinet, 2 type cases, type, ink roller and 
furniture complete ; perfectly new. L. Warren, 72 Cumber- 
land St., Brooklyn, N. Y. 
A Fletcher Foot-Blower, cost $5, as good as new ; will 
exchange for a Cushman, 2 in. or up scroll chuck, or other 
make; will give a satisfactory trade on the difference in 
price, if anJ^ Louis Lutz, St. Clair Street, Toledo, O. 
I have a lot of "Galaxy" (magazines) which I would 
like to exchange for an air rifle in good condition, a collec- 
tion of birds' eggs, or offers. W. B. Greenleaf, 48o- 
La Salle Ave., Chicago, 111. 
I have a Mechanical Telegraph with book of instructions, 
books, etc., which 1 wish to exchange for good microscopical' 
objects, mounted on 3x1 slips. Address, with list, J. H. 
Frey, Millensl urg, Ohio. 
To exchange, " How to Use Microscope," Wells' "Na- 
tural Philosophy," and many other books, chemical appa- 
ratus, etc , for good photographic camera, and lenses; W. 
H. Weed, 254 Putnam Ave., Brooklyn, N. Y. 
Wanted "Quimby's New Bee Keeping," for "Our 
Own Birds of the United States," by W. S. Baily ; new. 
Jo.seph Anthony, Jr., Colota, Whiteside Co., 111. 
Wanted a good book in anatomy, in exchange for a book 
on chemistry, or for story books. A. G. G., Box 26, 
Summit, New Jersey. 
A German-silver trimmed, patent lined, cocoa flute, cost 
$4, in good order, for good spy-glass, photo-material, or 
offers. Ewing McLean, Greencastle, Ind. 
I have some fossil shells from the west bank of the 
Mississippi, to exchange for Indian relics. A. W. S., 187 
E. 71st St., N. Y. 
I have a magic lantern. Ruby pattern, nearly new, and 
5 views; also "Our First Century," bound in leather, cost 
$7; state what is wanted in exchange. I. N. Spencer, 
Box. 217, So. Manchester, Conn. 
First-class telegraph instrument and attachments, and' 
"Wood's Botany," for bound volumes of periodicals, books, 
or offers. H. P. Albert, Anderson, Iowa. 
Wanted a book on treatment and care of canary, also 
breeding of same; will give in exchange book named 
"Market Garden, Flower Garden and Bees," or 40 
"Scientific Americans" or "Seaside Libraries;" want 
also old books. M. J. Mulvihill, Norwalk, Conn. 
