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IMPROVED EAGLE COTTON GIN.-BENEFIT OF GUANO. 
the latter method, though the first mentioned does 
not give one-tenth of the trouble. Gentle pressure 
only should be applied when the cheese is first put 
to press, and here I think the advantage of the 
screw-press is apparent. With it, a pressure of 
from 1 to 1,000 lbs., as the state of the cheese may 
require, in an hour or two, or when the cheese 
has pretty much done dropping, turn it and put it 
in a dry cloth, and repeat this once or twice, or 
more if you choose, before the expiration of twen¬ 
ty-four hours, when the cheese may be taken out 
of the press wholly to make room for its succes¬ 
sor. A Subscriber. 
Auburn, February , 1846. 
IMPROVED EAGLE 
Description. — a, driving brush pulley; 
bi slide ; c, c, end boards ; d, cylinder pul¬ 
ley ; e, top board ; /, saws ; g, grate fall; 
h , seed board, with a section of the patent 
grate below it ; i, idler pulley. 
After carefully unpacking the different 
parts of the Gin, put the front pieces into 
the posts and fasten them securely with 
the joint-bolts. 
The Saw Cylinder should be first placed 
in the frame, then the piece having the 
false grates upon it, and then the brush. 
The top timbers may then be put on and 
fastened. See that all parts of the frame 
are square. The grate fall should then be 
hung in its place, and the top boards and 
slides fitted in, so that the marks on their 
ends will correspond with those on the 
timbers. Then adjust the saw cylinder and false 
grates with the tempering screws at the ends, so 
that the saws and grates will exactly correspond, 
taking care not to turn the screws any farther than 
is sufficient to keep them steady and in their places. 
See that all joints of the frame are screwed up 
tight-^-place the Gin in the position in which it is 
to stand, and fasten it securely to the floor or plat¬ 
form, so that it will stand perfectly level. See 
that the shafts turn freely on their axes, and that 
the saws run freely in the centre of the spaces be¬ 
tween the grates. 
The oil cups at the axes of the shafts should be 
nearly filled with oil when the Gin is started, and 
the wick which conveys the oil to the axes should 
be enlarged or diminished, until the proper quantity 
is supplied to prevent friction. The tube contain¬ 
ing the wick should be withdrawn when the Gin 
is stopped, and dropped into the cup to prevent 
wasting the oil, and replaced when-the Gin is again 
put in operation. 
The saw cylinder and the piece having the false 
grates upon it, may be moved endwise and adjusted 
by the screws at their ends. 
Place the mote-board 3 to 5 inches below the 
brush, slanting down toward the front part of the 
Gin, and extend another board from beneath it down 
to the floor ; it must then be moved either forward 
or back, and the slant of it varied until the motes 
and false seeds are separated from the seed cotton 
and fall under the saw cylinder. 
The seed-board may be raised or lowered by 
means of the small bolts on which it rests at the 
ends, and it may be varied so as to enlarge or di¬ 
minish the space containing the seed cotton. 
A 10 inch saw cylinder should run about 180 
revolutions per minute. A 12 inch do. should run 
about 160 do. A 13 inch do. should run about 
150 do. 
Great care should be taken to fix the mote-board 
COTTON GIN. 
Fig. 43 
in a proper position to separate the motes from the 
clean cotton, as well as to adjust the seed-board, so 
that the seeds will be discharged as fast as ginned ; 
and it is essential that the speed of the brush 
should be very rapid, and that all the axes should 
be kept oiled and prevented from heating. 
Price of Hand Gins, with 14 to 18 saws each, 
$50 00 to $60 00. Power Gins, with 30 to 100 
saws each, $3 40 to $3 70 per saw. 
BENEFIT OF GUANO. 
As it may be for the public utility to hear some¬ 
thing on the score of Peruvian guano, I will give 
you my experience on the subject. 
Last year I used about three and a half tons of 
it in various ways, during the spring and summer, 
and must say I think it the cheapest and most 
effective manure I have ever tried, particularly as a 
top-dressing for grass lands. The way I prepare 
the guano for use is this: I plow a knoll of loamy 
soil, remove all the sods to the barn-yard, harrow 
the ground to make it fine, then spread a layer of 
guano half an inch thick, then shovel on fine dirt 
five inches thick, then a layer of guano as before, 
then five inches of dirt again in alternate layers, till 
I get the quantity desired. This must lie a week or 
ten days in compost, to incorporate the guano with 
the soil; it must then be shovelled over, and all the 
lumps broken and well mixed ; you can then put it 
in your cart and spread it from the tail of the cart 
about as thick as you would ashes. I put on at 
the rate of 500 lbs. Peruvian guano to an acre, 
which started my grass right ahead, yielding two 
tons per acre, where I should not have had over 500 
lbs. of hay without it. 
My potatoes benefited greatly by the use of 
guano, turning out astonishingly—“ the observed 
of all observersand I believe it to be a cure for 
tb e potato disease, as we had no rot where guano 
was applied. Applied to corn I found it equally 
