1166 General Notes. [November, 
against the upper and in the latter against the lower side, Fri. 
tion on the tube wall retarded the motion and gave a rotati 
movement to the solid bodies which tended to accumulate and 
clog the bore of the tube. 
When the balls were of the same specific gravity as water they 
were swept along the middle of the tube and remained always ia 
the “axial” or swiftest moving central current without touching 
the sides. Inthe normal circulation of the frog it can be shown 
that the white corpuscles pass along the upper wall of the blood 
vessel with a rotating motion. In order to make this observation 
the vessel observed must lie in a horizontal position while the 
web or sheet of tissue holding it is in a vertical plane. When the 
blood-vessel twists so that what was once the upper side becomes 
the under, the white corpuscle, carried on by the current, gradu- 
ally crosses the stream and reaches the new top wall. These 
facts are easily explained when it is considered that the white 
corpuscles are specifically lighter than the blood plasma. The 
red blood corpuscles move in a crowd, without rotation, away 
from the vessel wall, in the so-called axial current, which is mor 
marked the more rapid the circulation. i the 
The red corpuscles are specifically scarcely heavier than 
plasma, while the white are considerably lighter. The w = 
points out the evident conclusion from his experiments, ape 
relation between the specific gravities of red corpuscles n m 
ma must remain during health in very fine adjustment. ‘eles 
the red corpuscles to become decidedly either specifically ust 
or heavier than the plasma, they must crowd against t cain 
walls and the frictional resistance thus offered to the 
It does not seem improbable that a disturbance of the specific 
walls.—/ourn, of Physiology, Vol. v, p. 66, 1884. 
PSYCHOLOGY. pserved, of 
Emotionat Facurties of Animats.—lt will be the following. 
turning to the diagram, that I attribute to anny es historic 
emotions, which I name in the probable order of affection social 
development: Surprise, fear, sexual and parental _ play, alee 
feelings, pugnacity, industry, curiosity, jealousy, ae Jove of 
tion, sympathy, emulation, pride, resentment, gee 
ornament, terror, grief, hate, cruelty, benevolence, ae 
