144 
THE YOUNG SCIENTIST. 
EXCHANGES. 
Only those who :Kr^ 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 I'eserve the right to omit the exchange column, wher 
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. 
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, Coeynnans, N. Y. 
Electric bell engine, cost $15 ; pair of analytical scales. 
co5 $10 ; pair of Bell Telephones to exchange for a printing 
press, watch or offers. Geo. N. Bigelow, Box 754, Palmyra, 
N. Y. 
To exchange for offers first four (fifth when completed) 
bound volumes of Young Scientist. J. N. Brooks, P.O. 
1468, N. Y. City. 
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. Manyvariedes 
named in my list. J. P. Clough, Junction Lemhi Co., 
Idaho. 
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 any. 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, 480 
La Salle Ave., Chicago, 111. 
I have a Mechanical Telegraph with book of instructions, 
books, etc., which I wish to exchange for good microscopical 
objects, mounted on 3x1 slips. Address, with list, J. H. 
Frey, Millerslurg, 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," \ty W. S. Baily; new. 
Joseph 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, tp 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. 
Coins, minerals, stamps, books, type, fish ng tackle 
(very complete) and fish pole, bronze inkstand, etc., for 
coins, medals, stamps, war envelopes, old newspapers, and 
Continental, Colonial and Confederate currency. F. F. 
Fletcher, 103 Main St., St. John.sburg, Vt. 
Blow-pipe set (cost $10), large illustrated family Bible 
(cost $7.50), for Wood's Botany, Dana's Geology, or 
printmg press and type. H. W. Noble, Box 134, South 
Dansville, N. Y. 
Wanted, offers for fossil shells from the west coast of 
Africa. A. W. Seward, 187 E. 71st St. 
I have a number of birds' eggs I should like to trade for 
other birds' eggs ; send for list of trading eggs. A. G. G.,. 
Box 26, Summit, New Jersey. 
For a microscope stand or offers, a 36-inch turning lathe 
(new) and a number of scienti^c books; send for list. A. 
Kendall, Somerville, Mass. 
Wanted services of amateur printer with small office (or 
large), in exchange for an interest in a well-established 
weekly paper, good size. Eagle Office, Plymouth, N. H. 
American Agriculturist microscope, new, cost $15, for 
amateur photographic apparatus, lever watch, 22 calibre 
breech-loading sporting rifle or magic lantern of equal value. 
Wm. A. Walker, Rockland, R. I. 
I. T. Bell, Franklin, Pa., has back numbers of Scientific 
American, Forest and Stream, and Young Scientist, good 
flute, chessmen, books, etc., for good magic lantern, revolver, 
scarce coins, or offers. 
A steel spring bracket-saw, 2 doz. saw blades, and about 
I doz. patterns for a good stylographic pen or offers; send 
postal before exchanging. Geo. Oakley, Rutherford, N. J. 
A rosewood banjo, ii inch head, 12 nuts, fully strung, 
together with lot of dime banjo music and instructions, for 
microscope, Webster's Unabridged, monkey, squirrel and 
cage, or offers. J. DeWitt Clark, P. O. Box 37, Brooklyn, 
N. Y. 
For self-inking printing press and type, one Henry rifle, 
16 shot, 44 cal., cost $40, in good order, or one double barrel 
shot gun, barrels London fine twist, or offers. J. B. Garri- 
son, Belton, Bell Co., Texas. 
What offers for "The Chefs D'Oeuvre D'Art, Paris Ex- 
hibition 1878," cost $16, good as new, bound; 1 large 
photo camera, complete, cost $95; Scientific American from 
1859 to 1880, 4 vols, bound. D. Keesler, Stony Point, N. Y. 
Sea shells of Atlantic coast, scientifically marked, for 
books, old or new magazines, Indian relics, natural history 
specimens, apparatus; anything. Wilfred LecMi Miller, 
P. O. Box 392, Cape May, N. J. 
A new 40 diameter microscope, corals, and minerals, for a 
stylographic pen, air gun, or offers. J. McBride, 54 Garley 
St., Chicago. 
A dulcimer that cost $20, books and fossils, for a tele- 
scope, microscope, fossils, Indian relics, or offers. E. J. 
Votaw, Salem, Iowa. 
A self-inking model press, 5x 7^2, cost_$23 ; $90 worth of 
scroll-saw designs in lots to suit; Scientific American, 1880; 
Palliser's UseUil Details, $3 ; for photo outfit or offers. 
C. H. Parker, Coldbrook Springs, Mass. 
Telegraph key and sounder, Frank Leslie's Ilhistrated 
Magazines, mounted microscopic objects, natural curiosities, 
for 'bull's-eye condenser, photograph camera. Unabridged 
Webster Dictionary, or offers. W. T. Alan, Greenville, 
Mercer Co., Pa. 
Large magic lantern, spectroscope, pantagraph, for en- 
larging drawings, rosewood writing desk, man's saddle, for 
microscope, photo outfit or offers. Thomas Walters, Bergen 
St., East of Brooklyn Ave., Brooklyn, N. Y. 
Model card press, chase 3}(x5}{, with 4 fonts type, cases, 
etc., for good foot lathe. Mills Day, 2 Farmington Av., 
Hartford, Ct. 
French rrticroscope, inclines to any angle, delicate fine 
motion, neat upright ca.se, cost $17.50, for scientific books; 
send list to W. Fiiz, P.O. Box 2852, New York. 
Wanted, Quinby's New Bee Keeping, for Our Own Birds 
of the United States, by W. S. Baily ; new. Joseph 
Anthony, Jr., Coleta, Whiteside Co., Illinois. 
One years' copy of Aldine, cost $5.50, and German 
accordion, with instructions how to use it, cost $5.00, for 
offers. Chas. Dempwolf, 86 Benson St., Paterson, N. J. 
