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- Miscellanies. 155 
douce du Senegal,” by Mr. Rang, in relation to the torpidity of the 
Anodonta Chaiziana. 
April 6, 1838.—Dr. Patterson announced the death of Dr. Na- 
thaniel Bowditch, a member of the Society, who died on the 16th of 
March last, aged 63. Dr. Patterson was appointed to prepare a ne- 
crological notice of the deceased. 
Mr. Du Ponceau mentioned the death, not heretofore reported, of 
Mr. Adet, a member of the Society, who died in March, 1834. 
April 20, 1838.—Mr. Lea read a Note supplementary to his Me- 
moir, now in the Society’s press, on the subject of the Uniones, 
and permission was given to add the same to the principal commu- 
nication. 
The following candidates were elected members :— 
Wittram Harris, M. D., of Philadelphia. 
Rosert Treat Pane, of Boston. 
Joun P. Emmet, M. D., of the University of Virginia. 
Hucu 8. Lecare, of Charleston, S. C. 
Samve. Breck, of Philadelphia. 
Col. Svtvanus Tuaver, U. S. Engineers. 
Francis Wayzanp, D. D., of Brown University. 
Henry Baxpwiy, of Pennsylvania. 
Wiiu1am H. Prescott, of Boston. 
May, 4, 1838.—Pursuant to appointment, Dr. Horner read a necro- 
logical notice of Dr. Philip Syng Physick, late a member of the Society. 
Dr. Horner having expressed a wish to make the same public, per- 
mission was granted tu him to withdraw it from the files of the Society 
for publication. 
Dr. Patterson read a letter from Professor Henry, of Princeton, 
dated May 4, 1838, announcing that, in recent experiments, he has 
produced directly from ordinary electricity, currents by induction 
analogous to those obtained from galvanism; and that he has ascer- 
tained that these currents possess some peculiar properties, that they 
_ May be increased in intensity to an indefinite degree, so that if a dis- 
charge from a Leyden jar be sent through a good conductor, a shock 
_ May be obtained from a contiguous but perfectly insulated conductor, 
More intense than one directly from the jar. Prof. Henry remarks 
that he has also found that all conducting substances screen the induc- 
tive action, and that he has succeeded in referring this screening pro- 
cess to currents induced for a moment in the interposed body. 
Dr. Hare exhibited to the Society fourteen and a half ounces of 
Platinum, fused by his hydro-oxygen blowpipe, and a specimen of pure 
platinum, freed from iridium by the process of Berzelius. 
. Patterson submitted to the Society’s inspection, the log-book 
of the 54 ee Savannah, Capt. Moses Rogers, launched at New 
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