‘ 
Scientific Intelligence. 9 
SCIENTIFIC INTELLIGENCE. 
I. Cuemistry.* 
1. Researches upon the Phenomena that attend the Projection of Bod- 
ies upon Hot Surfaces ; by M. Boutieny, (Ann. de Chim. et de Phys., 
Vol. ix, p. 350, and Vol. xi, p. 16.)—Notice would have been taken of 
these researches before, had it not been from a desire to present a re- 
view of all of his memoirs at one and the same time; the third has 
not yet appeared, but the results already obtained are too interesting 
to remain longer unnoticed. 
The peculiar phenomenon that a drop of water or other liquid pre- 
sents when thrown upon a red hot surface, that is to say, of assuming 
a spheroidal form and evaporating but slowly, has been known for a 
very great length of time, but has never been critically studied. The 
author has endeavored to determine 
Ist. The ultimate limit of temperature, at which this phenomenon 
takes place. 
Qd. The law of the evaporation of water in its spheroidal condition. 
3d. The temperature of the liquids in their spheroidal state, as well 
as that of their vapors. 
4th. If the radiated caloric traverses the spheroids or is reflected. 
5th. If all bodies can pass to the spheroidal condition. 
6th. If there is contact between bodies in their spheroidal condition 
and the surfaces upon which they are formed. 
7th. If this phenomenon plays any part in the explosions (fulmi- 
nantes) of steam boilers, 
e first, concerning the limit of temperature at which the liquids 
become spheroidal, was determined by the following experiments among 
eT eee 
sented to continue his labors under this head in the present. His abstracts will 
always be followed by his initials, to distinguish them from our own,—as those of 
Dr. Gray in botanical science and bibliography, are known by “ A. Gr.” Itis 
our intention to follow closely the progress of the varions departments of science 
at home and abroad, by giving condensed abstracts of all that is most interesting 
and valuable to American readers, diligently culled from the foreign journals, and 
presented in a readable form at the earliest possible moment. To effect this, we 
are in the regular receipt of all the most valuable European journals of all lan- 
guages, besides having the kind aid of several gentlemen eminent in their several 
departmenis. : 
We shall follow the general order of—I. Curmistay. II. Mixeratocy and — 
Grotocy. III. Zoorocy. IV. Borany. V. Generat Paysics.—Eds. — 
