CORRESPONDENCE. 
421 
sible, be hig-bly prepared, because this drug on standing in bottles 
exposed to the sunlight is decomposed very rapidly; even in 
ordinary daylight the drug will slowly deteriorate. The drug 
kept in containers which are but partly filled and which contain 
atmospheric air, also decomposes. The principal products of 
this decomposition are hydrochloric acid and formic acid to¬ 
gether with certain gases. In this condition, the drug is not only 
irrespirable, but positively acts as a direct irritant to the respir¬ 
atory tract. Practitioners should, therefore, be careful in select¬ 
ing this drug for inhalation purposes. 
In producing local anaesthesia with cocaine, it has been re¬ 
cently found that solution of this drug made up with warm 
water at a temperature of 120° F. produces instant anaesthesia 
when injected into the tissues at this temperature. The experi¬ 
ments of Tito Costo showed that in a case of double inguinal 
hernia in a man, in which a warm solution of cocaine was used 
hypodermically on the left side previous to operation, anaesthesia 
was immediate, not the slightest pain being felt durino- the 
operation. On the right side, a cold solution was used, with 
t le result that severe pain was felt, although nearly twice as 
much cocaine was used as in the warm solution. In a case of 
poll-evil, operated on by me not long ago, the warm solution of 
cocaine was used previous to operation with the most remarkable 
ansesthetic effect, the animal not evincing the slightest pain, 
although the abscess was one of the worst that has come under 
my care for a long time. A further advantage in using the 
warm solution is that sepsis is not so apt to occur as with the 
cold solution._ Martin. 
PRACTICING IN NEW YORK STATE WHILE LIVING IN ANOTHER 
STATE.—ANSWER TO A CORRESPONDENT. 
7-7-, , . . Albany, N, Y., August 6, 1897. 
rLCtitors Ainerican Veterinary Review : 
Dear Sirs :—Yours of the ist inst., with postal from a 
reader of your journal, received. In answer to the question, 
‘ if a veterinary surgeon, a graduate of a New York City colleo-e’ 
and living out of the State, is prohibited by law from practiciiio* 
111 New York City or State,” would say, that there is no provn 
Sion in the law which exempts a person from registering on ac¬ 
count of being a graduate of a ‘‘ New York City college.” 
Section 171 reads as follows, viz.: “No person shall practice 
veterinary medicine after July ist, 1895, unless previously reg¬ 
istered and legally authorized, unless licensed by the regents 
