Scientific News, 461 
rabid saliva, may be either from a microbe found in the saliva, 
from formation of much pus, or from rabies. The virus of rabies 
is found not only in the medulla oblongata, but in the brain and 
spinal cord. Animals sometimes recover after the first symptoms 
of rabies, never after the acute symptoms. The authors have 
now four dogs which cannot take rabies, however inoculated ; 
whether this is from having had a mild form of it and recovered, 
or from being naturally refractory, they cannot at present say. 
| 
contain an innumerable quantity of small organisms (vibrions and 
bacteria) endowed with motion. The corpuscles, especially the 
white ones, were profoundly altered; these (white) were much 
more numerous than usual. Further, there were a number of 
_ void corpuscles, about two-thirds or three-fifths of the size of 
T the blood corpuscles, with one to three budding appendices. Hal- 
~ lier has described this vegetal ferment of rabid blood, and he 
i ray the fungus Lyssophyton. Lastly, the blood contained a 
lob 
eet The advantage of planting trees in streets and open spaces 
yee has been the subject of correspondence in the local press 
, æ@neva. Dr. Piachaud concludes that trees in streets do more 
harm than 
Pica as a protection from dust, while the evaporation from 
Me Sand-storm was raging in Kern county a few days 
it was raining in Fresno county a hundred miles further 
The Sand was carried by the Kern-county storm up into 
Upper stratum of air, when it was carried northward, and 
he cz, Mto the rain-storm of Fresno county, descended with 
- the Expositor mentions the fact of a mud-storm, but 
mot account for the real estate portion of the mixture.— Cali- 
ata A , Feb, ZO. 
€ numbers of Science have been received. This is a 
umal corresponding to the English Nature. It is pub- 
Cambridge, Mass., by Moses King, and edited by S. H. 
ag Be euch a journal was needed, and will doubtless 
