A LIST OF FLUID EXTRACTS, 
4 BOENTLY INTRODUCED INTO VETERINARY PRAOTIUR 
By G. H. DADD, V. 8., 
WITH INSTRUCTION REGARDING THEIR ACTION, AND 
THE QUANTITY TU BE ADMINISTERED. 
ITE introduction of medicines, in the form of FLum Ex- 
‘tracts, for the treatment of diseases incidental to domestic 
animals is considered a very great improvement over the old 
metho of drenching by the pint or quart, to the great disgust of 
the patient as well as the practitioner, and the great danger attend- 
ing the administration of a large quanty of fluid which was neces- 
eary when crude materials were used. In the use of fluid extracta 
all danj:er ix obviated and much labor saved, for the doses are 
quite small, rarely exceeding one fluid ounce. This can be merely 
placed on the tongue, the animal’s head being slightly elevated, 
and he swallows it without any difficulty or resistance. 
The fluid extracts bear an exact relation to the crude ma‘eriale— 
that is, ounce for ounce—yet, from a variety of circumstances, they 
may vary slightly from this standard. It is, however, the inten- 
tion of the manufacturer to completely exhaust the active principle 
of the crude material and render the medicine uniform in strength. 
The fluid extracts used by the author are manufactured by Messra 
Garrison .& Co., manufacturing chemists, of Chicago. They con- 
duct their evaporations at a very low temperature, by means of an 
improved steam bath, and use only select drugs, thereby prevent- 
ing the poss:bility of adulteration. T[ have used large quantities 
of medicine vanufactured by the above-named firm, and find them 
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