196 
EXTRACTS FROM FOREIGN JOURNALS. 
monstrating that capillary hemorrhage into the lamina of the 
alveola had not taken place. Pieces of the lung thrown into 
water floated upon its surface. The cavities of the heart were 
nearly empty, no coagulse being found in either of them. The 
peculiar contracted condition of the larynx under such circum¬ 
stances has been, we think, too often looked upon as causus 
morbi. In truth, the restricted circulation in the lung, the non¬ 
oxidization of the blood, with the consequent accumulation of 
^•0 2 , gives rise to irritation of the nervous centra controlling the 
larynx. This, with the swollen condition of the laryngeal muco- 
sie, presents ground of obstruction to the entrance of oxiginated 
air into the alveolae of the lungs, the lumina of which are already 
greatly diminished by the over-distended capillaries. In such 
cases the real causus morbi is the accumulated 0. 0 2 . 
I he day on which the accident occurred was painfully hot and 
sultry. The horse in question had only recently come to our 
city from Vermont, and was in no condition to demonstrate his 
natural speed for any distance under such untoward circum¬ 
stances. I lie excitement into which the horse was thrown, not 
only from his natural desire to outspeed his competitor, as well as 
the not too-light application of the whip, and the strong pulling 
to which he was subjected, all played a part in causing his death. 
F. S. B. 
Boston, July 8th, 1879. 
EXTRACTS FROM FOREIGN JOURNALS. 
TRICHINA IN AN HIPPOPOTAMUS. 
On the 10th of May, died at the Zoological Garden of Mar¬ 
seilles, a young hippopotamus, two years old. Since her arrival 
the animal has been ailing, her skin being covered with an erup¬ 
tion of furuncles. During the four months she was at the garden 
she received the best of care, but finally died. At the postmor¬ 
tem, a minute observation of the muscles of the back revealed the 
