1106 The American Naturalist. [December, 
At 3.42 (p. m.), 6 c.c. of blood from the carotid coagulated at 3.43. 
At 3.50 to 4 (p. m.) the lymphatics were ligatured. 
At 4.09, 8 c.c. of blood coagulated at 4.10. 
At 4.22, 5 c.c. of blood coagulated at 4.23. 
Then from 4.23-4.26 a solution of 6.5 gr. of peptone was injected into 
the sphenal vein. At the end of this time blood was drawn at inter- 
vals. 
7 c.c. drawn at 4.33 coagulated in 1 minute. 
8 c.c. drawn at 4.40 coagulated in 1 minute. 
8 c.c. drawn at 4.553 coagulated in 1} minute. 
This clearly shows that by thus preventing the intrahepatic circula- 
lation of the lymph, the peptone loses its power of preventing the coagu- 
lation of the blood, and consequently that peptone has its usual effect 
only after having passed through the lymphatics leaving the liver. 
—F.C. K. 
The Neoformation of Nerve-cells in the Brain of the Ape 
after a Complete Removal of the Occipital Lobes.’—It has 
commonly been supposed that nerve-cells are not regenerated, and such 
was the conclusion of G. Marinescu presented to the Société de Biologie 
in 1894. But physiololgists have observed that animals deprived of 
the occipital lobes gradually regain the power of codrdination of move- 
ments and of the recognition of surrounding objects to a degree, at least. 
The author, on Aug. 24th, 1895, observed this phenomena, and, upon 
repeating the operation, was surprised to find the orifices of trepanation 
closed with a somewhat resisting tissue, and that the space formerly 
occupied by the occipital lobes had been refilled with a tissue that, upon 
examination with the rapid Ramon y Cajal Golgi method and by the 
Erlich hematoxylin eosin method, proved to be made of pyramidal 
néerve-cells and nerve-fibres and neuralgia. The latter was very abund- 
ant, while the former were less numerous than in the normal lobes. The 
growth was not due to the hypertrophy of the anterior lobes, for there 
was no clear microscopical demarkation between the two parts, and 
must therefore have been due to neoformation. 
He adds that this explains, somewhat, the conflicting results of differ- 
ent observers in cases of incomplete removal of the lobes 
The operation of removal was repeated on the animal, end some three 
and a half months later the same phenomenon of reviving recognition 
reappeared.—F. C. K. 
The Æstivation of Snails in Southern California.—Like 
the human genus, snails require rest, days and weeks of solitude, in 
