106 NEW -YORK” ZOOLOGICAL SOCIETY. 
INJURIES. 
The Society should congratulate itself on the fact that but nine 
deaths have been due to accident. This number, of course, in- 
cludes all animals which were killed on account of injuries re- 
ceived by accident. It also speaks very highly for the general 
efficiency of the keepers, since but one of these accidents occurred 
as the result of gross carelessness or thoughtlessness; the other 
eight cases being mostly the result of the inevitable quarrel be-. 
tween animals, or of other causes which may be justly classified 
as unavoidable, - 
MONTHLY DEATH RATE. 
Careful observations have been made in order that it might be 
determined whether the month or time of year had anything to 
do with the death rate, as is the case with human disease in this 
climate. Our statistics are as yet too few to allow any well- 
founded speculations in regard to this matter, though in the course 
of a few years we may find the facts which we are now collecting 
of some considerable value. Taken singly, this year’s figures seem 
to indicate that the monthly death-rate is more dependent upon 
the monthly accessions than on any other factor. The figures 
are as follows: 
January..... 5 ANDI ooo d0d6 IO Jf? oon on 9 @ctoberss--- 7 
Rebruatyre- 8 May cisncrass 6 PATIOS terepey eee 12 November... iI 
INianGhiverererenere 14 | WAS. 0600006 8 September...) 12 December... II 
DIETETIC DEATH RATE. 
Observations are being made in relation to the number of deaths 
which occur among the various types of animals classified in re- 
gard to their food. Thus during the past year 1 Carnivore, 32 
Ungulates and 34 Primates have died. Improvement is especially 
evident among the Primates, where the deaths have been reduced 
from &9 instances in 1902, to but 34 in 1903. 
PROPHYLACTIC MEDICINE. 
This department has especially concerned itself during the past 
two years in the adaptation to the Park of the principles of pre- 
ventive medicine, and during this last year we have particularly 
