AMERICAN AGRICULTURIST. 
No. 17 . — Compound Microscope. — 
This new instrument is a wonderful success, and is con¬ 
stantly receiving the strongest praise from many of the 
highest scientific authorities. It has all the chief parts 
of the most costly instruments, with several improve¬ 
ments, and is supplied with a Camera ILueida, 
enabling any one to throw upon paper, and easily sketch 
in large size, objects too minute to be seen by the unaid¬ 
ed eye. It defines very dearly, and has a magnifying 
power up to 150 diameters, or many thousand areas. It 
is as valuable as any Microscope hitherto obtainable, 
wilh Camera Lucida, for §50 to $100. (Afull descrip- 
Two Sets of Instruments, including Batteries, and 
Chemicals, with the 20 ohms fine wire helix for work¬ 
ing up to 15 miles; two extra Batteries and Chemicals 
(enough to work J of a mile); six Glass Insulators, with 
Brackets used to nail up upon trees or buildings for car¬ 
rying wire; two Manuals, giving full directions for put¬ 
ting up the apparatus, and instructions for learning 
and using. Cost $12.00. We will PRESENT the 
whole double apparatus, as above, to any one send¬ 
ing us only 15 subscriptions, at $1.50 each. (At $5.00 ex¬ 
pense for each extra house, three, four, or a dozeli houses 
may be put in the same line.) Freight paid by recipient. 
Closed. 
Open; 
H feet. 
tion mailed to any one desiring it.) By means of new in¬ 
ventions and the use of machinery in constructing its 
parts, it can now be supplied at retail for only $15, all 
complete, in neat Walnut Case, with sundry adjuncts, 
specimens, full directions for use, and Prof. Phin’s Mi¬ 
croscopic Treatise. (To subscribers to the American Ag¬ 
riculturist, for whom it was specially designed, it will be 
supplied for $10.) It will be PRESENTE® to any 
one obtaining Ten subscribers, at, $1.50 each. Expressage 
paid by recipient. No more interesting and valuable 
article for one’s own use, or for a Holiday or other pres¬ 
ent, can anywhere be found. (£§?“ One of these Micro¬ 
scopes shouldbe placed in evert Public and Private School. 
This Microscope is also of special utility to Physicians. 
No. 19.-Spy Glass or Pocket Tel¬ 
escope. —(12 lines.)—Much the best one for the 
price we have ever seen. It defines and magnifies distant, 
objects quite plainly. Made of fine drawn brass tubing, 
corded, with sun or storm shade; when closed up fits 
into a case, carried easily in the pocket. From J. Curley 
& Bro., Optical Instrument Dealers, 134 and 136Nas- 
sau St., N. Y. Five subscriptions, at $1.50 each, will 
secure this. [Or we will supp.y it for $3.75, post-paid.] 
No. 20.-Spy Glass, 16 Lines.— This is 
much larger and more powerful than No. 11), and like 
that is much the best instrument for the price that we 
have found in this country. It is cased in brass; corded; 
has sun or storm shade. Length when drawn out 37 
inches. From same firm as No. 19. One obtaining 
Twelve subscriptions at $1.50 each will secure this [or 
we will supply it for $9.00.] Receiver to pay expressage. 
Nos. 21, 22.—A Good Opera Glass, 
in Leather Case, of strong magnifying power, excellent 
for examining objects at considerable distances, seein" 
This Engraving shows only ONE-HALF of the Premium set. 
No. 18.—Complete Telegraph Appa¬ 
ratus for Learners and for Practical 
U se. —A GLAND PREMIUM for Two Boys or Young 
Men , or anybody —also for yoking Ladies wishing to learn 
Telegraphy. The use of the telegraph is extending 
everywhere. It is but little work to learn its simple lan¬ 
guage, and then two persons can hold instant communi¬ 
cation over any distance, long or short. Every growing 
boy and girl may well learn this language. Messrs. L. 
G. Tillotson & Co., of 5 and 7 Dey St., New York, the 
celebrated largest manufacturers of Telegraph Instru¬ 
ments in this country, are now making very complete 
and perfect working Telegraph Instruments, (see En¬ 
graving), with Batteries, etc., at a price so low as to place 
them within the reach of all. It will cost but little to 
put them up between houses, business shops, dwellings, 
and stores, farm buildings, etc. We have arranged for 
the following most valuable premium set. Two Boys 
or Young Men, in any neighborhood, by getting this 
double set, can connect their homes, (1 to 15 miles apart, 
if they wish), and talk with each other, and at the same 
time learn to be able to use any telegraph, at any time, 
and anywhere. The complete Outfit will contain 
scenery, etc.—No. 21, in Jet, or in gilded (gold-plated) 
mountings as desired. Diameter'of Object Lens, 15 lines 
(IK inch). Price, $5.50. Presented for 7 subscribers 
at $1.50 each.—-No. 22, same as the above, but larger; 
Object Lens, 17 lines (l 6 /i 2 inch), Jet mountings. 
Price, $6. Presented for eight subscribers at $1.50 each. 
US'-If to go by mail, send us 25 cents for postage & packing. 
(This cut is only half size.) 
No, 23.—Magnifying Glass, and Sun 
Glass.— Of excellent quality, made by the Bausch & 
Lomb Optical Co. ; very useful to magnify all ordinary 
objects, printed matter, needle-work, cloth, plants, 
flowers, etc., etc. Closes in a neat polished hard-rubber 
case for carrying in the pocket. It is also a good Sun or 
Burning-glass, concentrating the sun’s rays to produce 
fire. Diameter of Lens, IK inches. Sent, post-paid, 
for $1.20. Presented for Two subscribers at $1.50 each. 
No. 24.—Columbia Bicycle. -This is the 
leading and favorite Bicycle in this country; it i a 
strong, well made, and finely finished; diameter of fyont 
wheel 50 inches, rear wheel 18 inches, weight 47 pounds, 
and is supplied with Saddle Bag, Wrench, and Oiler. 
Prom the Pope Manufacturing Co., 101 Summer St., 
Boston, Mass. Seventy subscriptions at $1.50 each 
will secure this (or we will supply it for $70.) Receiver 
to pay expressage. It is a very superior Bicycle. 
Nos. 25, 26. —Good Barometers are 
very Useful to Evenjbody, now. The recent improvement in 
weather observations enables one to readily know what 
the weather is likely to be many hours in advance, and 
such knowledge is of great value in caring for crops, ani- 
No. 25. mals, in planning work, etc. No. 20. 
To almost every farmer, and to 
many others, a good Barome¬ 
ter will every year pay a very 
large interest on $100.—To 
meet this want, the Publishers 
have arranged to supply one of 
the most accurate, simple, de¬ 
sirable, and cheapest Mer¬ 
curial Earometcrs to 
he found in the country—just 
as good for all practical pur¬ 
poses as one costing a hundred 
dollars, or more, viz.: Wood¬ 
ruff's Patent Portable Barome¬ 
ter , manufactured by Charles 
Wilder, Peterbdro, N. II. We 
have tested Mr. Wilder’s work 
for many years, and can confi¬ 
dently recommend the barome¬ 
ter to all. The Barometers 
offered are so portable that 
they can be sent to any dis¬ 
tance safely. — Description; 
No. 25 is cased in finely fin¬ 
ished, polished Black Walnut. 
Length, 3 feet; width of top 
and base, 4 inches: width of 
shaft, 2 inches; depth (thick¬ 
ness), inch, with pedes¬ 
tal, 2K inches deep ; mounted 
with metallic plates, Vernier 
scale, Thermometer, and index. 
Glass door over the face. Price 
reduced to $12.—No. 26 is in 
neatly turned Case of maple or 
Cherry. Length, 40 inches; diameter of base 
and top, 2K inches. Shaft slightly tapering, abouTl% 
inch in diameter. Semi-circular glass face; mounted 
with metallic plates, Vernier scale, and Thermometei'. 
Price redneed to $8 .—These Barometers will be securely 
packed, and forwarded direct from the manufactory to 
any address. (The cost of carriage, which will be small, 
to be paid by receiver.)—We present No. 25 for 13 sub¬ 
scribers, at $1.50 each ; or No. 26 for 10 subscribers.— 
[Or on receipt of the price we will forward either 
barometer]. Send to Mr. Wilder for a full description. 
