PURE SALT (Refined) acts as a 
tonic, invigorates the system, promotes- 
digestion, purifies the blood, increases 
strength of bone and muscle; in fact, is 
a stimulus for the general health and 
thrift of animals, as well as with man¬ 
kind. 
ROCK SALT in its natural state,. 
is not pure salt. It is contaminated with 
foreign substances, such as the sul¬ 
phates and chlorides of magnesium and 
calcium, bromides, gypsum, grit, etc.,, 
which have to be expelled in the process 
of refining before it is fit to be used. This 
impure salt is gritty and bitter ; it also 
has a burning, acrid and puckery taste. 
The animal eats it slowly and reluctant¬ 
ly, with poor satisfaction. It is more in¬ 
jurious than beneficial when used. 
SALT BRICK IYIFG. CO., 259 GREENWICH ST. S We invite Special Attention of Vet. Surgeons 
(.Write for circular.) NEW YORK. 1 to the Pure Salt contained in these Bricks. 
Dr. Leavitt’s Dehorning: Shears, Guaranteed 
to have twice the power of any other instru¬ 
ment made, having two movable blades. The 
IT HAS 
DOUBLE COGS 
handles only move half the distance of an\/ 
other clipper to clo the work, on old or 
young cattle, making perfect mulies. 
Leavitt M’fg. Co. Hammond, HI.,U S b 
Dr. L. H. FRIEDBURG, 
Analytical and Consulting 
Chemist. 
Professor of Chemistry and Toxicology at 
the American Veterinary College. Address, 
384 Monroe St., Brooklyn, N. Y. 
Analyses of Food, Water, Milk, Miner¬ 
als, Ores, &c. Toxicological and other 
special investigations invited. 
CLUMBER SPANIELS, 
COCKER SPANIELS, 
SCOTTISH TERRIERS. 
Newcastle Kennels, Brookline, Mass., U. S. A. 
. 
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EXPERIENCE. 
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special notice in the 
SCIENTIFIC AMERICAN, 
beautifully illustrated, largest circulation of' 
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Book on Patents sent free. Address 
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13 
