490 
AMERICAN AGRICULTURIST. 
[October, 
A Remarkable Instrument—Of Great Value to All $ 
Brought within the reach of almost Everybody—Costs scarcely one-fifth of former less Valuable Instru¬ 
ments—Reveals all around us a World of Objects far more numerous and even more interesting and 
beautiful than all we can see with our natural eyes — Useful in Many Ways—a Perpetual source of 
Pleasure and Instruction to YOUNG and OLD—It should be al once placed in every Public and 
Private SCHOOL not already supplied, and in Every FAMILY—Valuable to Physicians, etc., etc. 
the benefit of all. Plenty of people would take the paper 
for their own use, when by so doing they would help so 
valuable an enterprise. 
N. B .—Anyone desiring the above Microscope for imme¬ 
diate use, or as a present, can forward $10 and receive it, 
and deduct the $10 from the subscription money if he after¬ 
wards makes up a Premium Club for it, as above offered. 
Partial Description.— (A full De¬ 
scription, also Prof. Phinn's " Book on 
the Microscope ” go with each Instru- 
-ment: A. Heavy jet-black ikon foot. 
—B, Two iron pillars, with trunions 
between, allowing the instrument to turn 
to any angle from perpendicular to hor¬ 
izontal.— D, Hard-rubber stage, with 
spring clamps, which are easily adjusted 
to thick or thin plates, 
or quickly removed—E, 
Revolving diaphragm, 
with different sized ap¬ 
ertures to graduate a- 
mount of light admit¬ 
ted.— F. F, CONCAVE 
MIBP.OB, throwing light 
up from below through 
transparent objects ; or 
turned above to throw 
light upon 
Fig 2.— ETE-PIEOE, 
opaque ob¬ 
jects. — G, 
The BODY, 
nickel-plat¬ 
ed, which ib 
moved upor 
down with Fig. 3.— camera lucida in use. 
great delicacy of adjustment of focus, by the rack and pinion, moved 
by the milled heads (one seen at H).—I, Two object 
glasses, used separately or together, according to power de- 
These, the most important part of any Microscope, are 
of very superior quality.—L, is a nickel-plated 
draw-tube, 8 K inches long, adding materially 
to the length of the body when higher magnify¬ 
ing power is desired.—K. (shown in section at 
the left, in fig. 2) , is a very complete eye-piece, 
having all the parts of the most costly Micro¬ 
scope, viz., FIELD glass, Qi DIAPHRAGM Of 
black metal, P( eye-glass, O.— All parts of 
the eye-piece are mounted In frames with re¬ 
movable screws.-Fig. 3. — The Camera 
Lucida is a new and most valuable appliance 
for throwing the image of any object, magnified 
to any desired size, upon paper in a way to be 
easily sketched with a pencil by any person, 
or by a child. If old enough to trace lines and 
marks with a pencil,— With this, one can 
make a complete picture. 3 or 4 inches across, 
of the foot of a fly, the parts of a plant, and of 
many other things so small as to be almost 
invisible to the unaided eye. 
—The New American Agriculturist 
Compound MICROSCOPE. 
With a Compound Microscope we have actually seen 
and measured living, moving animals, so small that 
10,600,000,000 would only fill a bos one inch in diameter— 
that is, seven times as many of them as there are of 
people in the world!—We have a hit of swine’s flesh 
barely visible to the unaided eye, which, under the 
Microscope, is plainly seen to contain seven separate 
nests of Trichines that 
look like so many mon¬ 
strous serpents.—The un¬ 
seen world all around us is 
full of such wonders. The 
Microscope opens up this 
world to our eyes 1 The 
greater the power of the 
Instrument, the greater is 
the extent of’the world 
thus revealed. 
For the special benefit 
of the readers of the Amer¬ 
ican Agriculturist, the Edi¬ 
tors, after years of thought 
on this subject, and many 
Fig. 4. Microscope condensed 
In Walnut Case ( 8 } 4 xi%x‘S% 
Inches), in which It is firmly 
held for carrying or keeping. 
experiments, succeeded in having an excellent Compound 
Microscope of quite large power, constructed by automatic 
machinery, which makes the parts far more perfectly, and 
at far less cost than the former slow hand¬ 
work.—It has also combined with it a new, 
simple Camera Lucida, which enables 
even a child to sketch upon paper large per¬ 
manent pictures of objects so small as not to 
he visible to the naked eye—such as the dust 
on a moth or butterfly shows like feathers or 
scales, 3 or 4 inches across, and in infinite variety of 
form, shape, and coloring; the foot of a fly, flea, etc.; 
the tiny and nearly or quite imperceptible insects that 
destroy our plants and clothing, or produce diseases in 
our plants and animals; the pollen of flowers, etc.—It 
enables farmers, gardeners, and fruit growers to examine 
and recognize insects, foul seeds, fungi, etc., etc. It is 
useful to all physicians. Every family will find it in¬ 
tensely interesting, and no School, Public or Privale, 
should be without one. (See offer below.)-This new 
Instrument has the unqualified praise of distinguished 
Scientific Men, many of whom use it for all investiga¬ 
tions, except those of certain specialties. Yet it is so 
simplified that, with the explanations and book that go 
with each, common people, even children, can use it 
with great Pleasure and Profit. 
Price $15 (or $10 to American Agriculturist sub¬ 
scribers, for whom it was specially designed).—t^"This 
price includes the Camera Lucida, the Walnut Case (fig. 
4 ) packed in an exterior box, so that it will go safely 
anywhere by express; also a free copy of Prof. Phinn’s 
Book on the Microscope, some glasses, etc.—Carriage 
paid by recipients. 
The whole will also be Presented to any one fur¬ 
nishing 10 subscriptions to the American Agriculturist 
at $1.50 a year each. XW The Teachers or Pupils in 
every school not already supplied should at once make 
up a subscription club, and secure this Microscope for 
The Pocket Knife to Have. 
No. 67 .—No other single thing, in so small a com¬ 
pass, have we ever owned, that lias been so handy and 
useful in many ways, as a two-ounce Pocket Knife, well 
called Multum-in-Parvo, for it comprises “ much in lit¬ 
tle ” space and weight.—There are plenty of heavy, 
bungling combination knives, somewhat like it, hut ours 
is the real multum-in-parvo. After standing by us over 
15 years, until the blades were worn to a skeleton, ours 
disappeared last haying time. But though cherished as 
an old, useful friend, its loss is a gain, for we have now 
a better, improved one. After vainly sending to London 
for duplicates for our readers, our Yankee friends get 
them up for us, and, as usual, heat the foreign makers in 
style and finish, in the saw, gimlet, etc. The small 
engraving shows it closed up (as closely as any other 
knife), 3 inches long, with ivory sides. Presto 1 and ont 
comes almost any tool you want, or a lot of them (see 
larger cut). While closed, an excellent, effective Screw¬ 
driver in the end is always at hand, for any screw up to 
an inch long or more. The broad back of the hook sup¬ 
plies a convenient small Hammer. Out of the end we 
take a steel Pointer, nearly two inches long, serving as a 
slim brad-awl, etc.; also a fine pair of Tweezers, for ex¬ 
tracting slivers, stray hairs in the face, and for picking 
up and holding many small objects.—We can succes¬ 
sively open out, as needed, a large Knife Blade and a Pen¬ 
knife ; a Saw, with double row of teeth, that readily cuts 
off sticks, limbs, or boards up to an inch thick ; a Gim¬ 
let, “us good as they make them”; a three-cornered. 
pointed steel Punch, or Rimmer, always handy to make 
and enlarge holes in harness, in wood (ours has often 
helped mend a broken line, tug, or other leather, in the 
field or on the road, with the aid of a strong twine or 
string, which every one should always carry about him). 
—The Ccrrk-screw often comes handy for ink or other 
bottles, medicines, etc.—is especially useful to those who 
(foolishly) use up the vast amount of patent medicines 
now sold.—The Hook, which folds closely over the small¬ 
er tools (and making a 
sort of Nut-cracker, with 
the hoilowed-out handle), 
is as convenient as the 
little end of an elephant’s 
trunk. It is strong, pries 
open a door, and a score of other things, lifts a pot, ket¬ 
tle, or stove lid, or opens a stove-door, pulls on shoes 
and hoots, and is especially good for cleaning sand and 
gravel out of a horse’s hoof. The Knife is, in fact, a 
POCKET FULL OF TOOLS.—25 per cent on its cost 
for interest and wear, is less than 2 cents a week; it is 
often worth ten times that in a single emergency. We 
mail one, post-paid, anywhere in the United States for 
$4; OR, Present one, post-paid, for 5 subscribers at 
$1.50 each. 
KNIFE CLOSED, 
No. 68.—Pruning Knife.—Price $i.oo.—A 
very good, strong knife for pruning, made of reliable 
materials. This will be sent, post-paid, for 2 subscrip¬ 
tions at $1.50 each ; OR, we will supply it for the price, 
post-paid. 
We have sent this Compound Microscope as a Premium all over the World by the Hundred. 
