80 
tower’s improved grain dryer, etc. 
of the sexual character of this plant, than its 
being named in connection with the famous 
English seedling, Wilmot superb, which is not 
worthy of cultivation, even as an impregnater. 
N. Longworth. 
Cincinnati, Dec. 29th, 1849. 
COWS, NOT GIVING DOWN THEIR MILK. 
I have often heard persons speak of cows 
holding up their milk, but I always supposed it 
was imaginary; for, I did not believe that the 
secretion, or flow of milk, at all depended on the 
will, although I knew that impressions on the 
mind would effect the secretion of milk in 
human beings and animals. 
Last summer, I purchased a cow that I took a 
fancy to, and wishing to be particular with her, 
I commenced milking for the first time. In this 
operation, for I am now quite a milker, often 
milking my cows myself, I have discovered that 
my suppositions in relation to cows holding up 
their milk, were erroneous. This afternoon, I 
was attempting to milk a cow that had been 
slopped when she was milked. Her teats were 
fined to these wheels by bands of hoop iron, b. 
The feeding end is made of sheet iron, f in a 
proper form to receive two spouts, one for feed¬ 
ing, the other for letting off the steam from the 
grain. This feeding end,/, is elevated one inch 
for each foot in length of the cylinder, and the 
grain after passing through the cylinder, falls 
into the hopper, h. The cylinder is placed within 
a brick arch, of which i, i, is the base, of suffi¬ 
cient size to contain a common box stove, and 
pipe twice the length of the kiln; the stove being 
at the feeding end and directly under the cylin¬ 
der. The motive power is applied to the cylin¬ 
der by a band from the machinery of the mill, 
passing over the pulley, e. The cylinder should 
have about 25 revolutions to the minute; and 
with that velocity the grain will remain in the 
tubes about six minutes. The time can be regu¬ 
lated in two ways, by the velocity of the 
cylinder, and by the pitch, which should be 
greater or less, according to the dampness of the 
grain. 
A cylinder of the dimensions above described, 
will dry from 15 to 20 bushels per hour; the 
quantity depending upon the dampness above 
Tower’s Improved Grain Dryer. —Fig. 29. 
like leather. I could not obtain any milk, until 
a feed of cabbages were given her, when she 
gave her mess of milk. That cow previously 
spoken of could not. be milked unless the calf 
v/as nursing at the same time. I should like 
very much to have this subject explained. Can¬ 
not some of your physiological correspondents 
give the scientific reasons for it ? F. 
TOWER’S IMPROVED GRAIN DRYER. 
The improvement of this machine consists 
in passing the grain in a particular manner 
ttirough a revolving and heated cylinder of 
separate square apartments or tubes, a, a, a, 
as seen in the engraving, which are made 
of sheet iron, 14 feet long. The frame work 
consists of an iron shaft, c, c, 2 inches in diam¬ 
eter, resting on its bearings, d, d, forming the 
axle of, and passing through, four cast-iron 
wheels placed thereon at equal distances from 
each other, 20 inches in diameter, having projec¬ 
tions on their outer edges half an inch thick, and 
inches from each other; and between which 
projections the sheet-iron tubes are placed, and 
are thus kept half an inch apart, to give the 
heated air free circulation. The tubes are con- 
mentioned. The principle is such that the cylin¬ 
der may be made of any size required, or seve¬ 
ral may be enclosed in one kiln. It is neces¬ 
sary in order to have the grain thoroughly and 
properly dried, that each kernel should come in 
contact with the heated sheet-iron tubes; and 
this is rendered practicable by the large amount 
of surface on the inside of each tube, to which 
the comparatively small quantity of grain, which 
is in it at any one time, is exposed. 
The great "ad vantage of the invention is, that 
the corn, (and any other grain combined in the 
same manner,) has a constant rotary motion and 
therefore is not burned on one side before it 
is dry on the other—thus, the corn comes out as 
bright and yellow as when it left the ear, and an 
article of meal is thus furnished for the market 
altogether sweeter, and consequently superior in 
value. 
This machine has been in use two years for 
drying corn. One is at present in successful 
operation in New Brunswick, New Jersey. The 
total expense of this apparatus does not exceed 
$100. They may be procured by application 
at the Agricultural Warehouse and Seed Store 
of A. B. Allen & Co., 189 and 191 Water street 
New York. 
