REVIEW OF MEDICAL PROGRESS. 
329 
PHYSIOLOGY—CONTRIBUTION TO THE STUDY OF THE MOTRICE 
FUNCTION OF THE STOMACH IN THE DOG. 
By A. Hirsoh. 
In dogs carrying a duodenal fistula and kept in good 
•health, the evacuation of the contents of the stomach is made 
by successive acts, taking place at intervals more or less short 
(a quarter of minute and more). This evacuation begins at a 
time more or less near to that of the-ingestion, influenced by 
the nature of the food taken in. It begins immediately after 
the absorption of water, six minutes after that of warm bouil¬ 
lon, and ten minutes after other kinds of food. Each time 
that the pylorus opens, it only allows the escape of a few 
cubic centimeters of chyme; at the beginning of digestion, 
this escapes at short intervals and with a certain pressure, 
each time gradually diminishing. After a heavy meal, the 
'evacuation of the gastric contents is not completed until four¬ 
teen hours. Anesthesia by ether brought on during digestion 
suspends the evacuation from the stomach, but it returns as 
the animal wakens. The ingestion of a moderate quantity of 
fresh, cool water gives it a new activity. The opening of the 
pylorus seems to be principally stimulated by the liquid con¬ 
sistency of chymified food.— Ibid. 
PATHOLOGICAL ANATOMY—UPON THE LESIONS OF NERVES IN 
TETANUS. 
By Acha.bd. 
In four cases of tetanus, there were lesions of peripherical 
neuritis occupying principally the traumatic surface and the 
seat of the contractions, but being also sometimes observed 
in regions more or less close to those. It was a parenchyma¬ 
tous neuritis, with all the characters of decreasing degener¬ 
ation. It is probable that this neuritis is related to the trau¬ 
matism in the same manner as the tetanic contractions them¬ 
selves. The irritation started from the periphery, and trans¬ 
mitted to the central elements would give rise there, especi¬ 
ally to the spasmogenous excitation, and very accessorily to 
the loss of the trophical power. The mechanism of peripheric 
neuritis would seem to be the same as in cases of amyotrophy 
of articular origin.— Ibid. 
