276 Scientific Intelligence. 
the confidence of the gentleman referred to, was full and entire 
in the integrity of the witnesses of the phenomenon, it wou 
seem to be an instance, in which the sulphurous matter of a 
shooting star was not completely consumed before reaching the 
ground, and that much of the residuum suffered oxydation after 
it struck upon the cinder of the walk.* ; 
meteoric cabinet has contained for many years, a few grains 
of a mixture of carbonaceous and earthy matter in a pulverulent 
state, sent to me in 1845 by Mr. Black, of Elizabethtown, Essex 
county, N. Y., (then a member of the Legislature of New York), 
re ——s fallen in his wood-yard during the winter of 1844 and 
_ As an appendix to this unsatisfactory list of supposed meteor- 
ites may be added a statement concerning a specimen, the half of 
which is in m ession, so puzzling in its properties as to 
leave me in great doubt, whether to arrange it among terrestrial 
or celestial productions. Its history is briefly as follows. It 
was brought to Dr. Gibbs of Columbia, S. C., by a poor woman 
resident in the vicinity, under the impression I believe, of its hav- 
ing fallen from the skies; ahd as such, was presented to me by Dr. 
Gibbs. Its size is about that of an ordinary fig, which fruit ina 
compressed state, it somewhat resembles in figure. Its surface 
was nearly black, rough and without a glaze. It seemed hol- 
ow, and reminded me of an impure, brown iron-stone cetite. 
On breaking it open, it presented an irregularly shaped cavity, 
holding nearly a thimble full of silicious sand, and had upon its 
interior walls, little pellets (half the size of a mustard seed) of 
pure lead, almost exactly resembling those found in the Hemalga 
(Chili) meteoric iron. 
SCIENTIFIC INTELLIGENCE. 
I. CHEMISTRY AND PHYSICS. 
1. On Ammonia-Chromium bases.—Frémy has discovered a class of 
ammonia-chrumium bases, analogous to those formed by cobalt, iridium 
and rhodium. The author, who appears to be ignorant of what has 
sh he te: 
oxyd” and the other “ metachromoxyd,” the latter being the soluble and 
- the an: yses of which are not given. These substances are easily decom- 
__ # Tt-was found by Dr. Heddle of that the cinder still retains distinct 
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