412 Miscellaneoiis Intelligence. 



that the successive layers which are added to the central nucleus 

 are in a state of fluidity sufficient to allow of the flattening of the 

 spheroids being caused by a rotatory movement ?" — Ann. de Chim. 



xxvii. 120. 



13. On the causes of Animal Heat.— 1\ie following are some of 

 the conclusions obtained by M. Despretz, during the course of his 

 experimental investigations of the causes of animal heat : — 



1. Respiration is the principal cause of the developement of ani- 

 mal heat; assimilation, the motion of the blood, the friction of 

 various parts, may produce the small remaining portion. 



2. Besides the oxygen employed in the production of carbonic 

 acid, another portion of this gas, which is sometimes very consi- 

 derable in proportion to the first, also disappears ; it is supposed 

 generally, that it is employed in the combustion of the hydrogen of 

 the blood. In general more oxygen disappears in the respiration of 

 young animals than in that of adults. 



3. Exhalation of nitrogen takes place in the respiration of those 

 mammiferous animals which are carnivorous or frugivorous, and 

 in the respiration of birds ; the quantity of nitrogen exhaled being 

 greater in frugivorous than in carnivorous animals. — .^wm. de 

 Chim. xxvi. 360. 



14. Hydrophobia. — Dr. Capello, of Rome, in a memoir, read 

 before the Academy dei Lincei, affirms that the hydrophobic poison, 

 after its first transmission, loses the power of conveying the disease. 

 This observation, already made by Bader, is confirmed by repeated 

 experiments made by Dr. Capello. A lap-dog and cat were both 

 inoculated with the saliva of a dog who died of inoculated hydro- 

 phobia ; they both remained free from disease, and three years af- 

 terwards the lap dog was again inoculated from a dog who became 

 rabid spontaneously ; he then took the disease and died. 



An ox was bitten by a dog attacked with rabies; he became hy- 

 drophobic, and bit many other animals : all remained free from the 

 affection. The dog that bit the ox also bit a child, who died about 

 four months after, with all the symptoms of hydrophobia : with the 

 saliva of this child a dog was inoculated, but the disease was not 

 transmitted. 



A dog which had been bitten by another dog became hydropho- 

 bic on the fifty-first day, broke the chain with which he was fastened, 

 and escaped into the street, where he bit many persons, and the 

 dogs of two persons (who are named), and finally disappeared 

 among the ruins of the Villa of Quintilius Varus ; not one of the 

 persons or dogs so bitten had the slightest symptom of hydropho- 

 bia.— Med. Jour. lii. 433. 



15. Use of Pomegranate Root as an Anthelminthic. — Dr. Chapotin 

 says, boil an ounce and a half, or two ounces, of the dried bark of 



