Miscellanies. 191 
tected the destruction of the lens and of its: alan Aides circum- — 
stances which would not otherwise have Jed to the conclusion that 
they had been destroyed, and where vision had been obtained by the 
use of a cataract lens, 
June 21, 1839.—The librarian was authorized to take order in rela- 
tion to an exchange of the Transactions of the Society, for the Journal 
of the Boston Natural History Society. 
The committee on the letters of Mr. J. P. Hulliken and Dr. Town- 
send reported, and was discharged. 
The committee to whom was referred the publication of certain 
meteorological tables, accidentally omitted in their place in the Trans- 
actions, and the journal of Dr. Thomas Hewson, 2 ah in favor of 
the publication of certain of the former and of the latter. 
Dr. Bache presented a translation of an obituary rs of Profes- 
sor Rask of Copenhagen, late a member of the Society, to be depos- 
ited in the archives of the Society. 
Mr. Vaughan informed the Society of the decease of Doctor Thomas 
Cooper, a member of the Society, who died on the eleventh of May 
last. 
Dr. Hays communicated verbally the case of a woman laboring 
under an affection of the optic nerve, in which a defect in the recog- 
nition of colors was developed, according to her statement, at the 
same time with the affection of the general vision, and in whicha 
“+ 
ew * 
partial recovery of the power of vision had been attended with the re- _ 
covery of the power to distinguish colors. . 
Dr. Hare Jaid before the Society, portions of barium, strontium and — 
calcium, and stated the considerations which led him to attempt their 
extrication, and the means by which he had succeeded. 
July 17, 1839.—The Committee on the observations of the Solar 
Eclipse of May 14-15, 1836, reported, and their report was ordered 
for publication. 
he American observations, twenty eight in number, were given at 
length. At the invitation of Mr. C. Rumker, Director of the Hamburg 
Observatory, conveyed through Prof. A. D. Bache, twenty one of 
these observations had been forwarded by Mr. John Vaughan to that 
distinguished astronomer, for comparison with those which had been 
made in Europe. The report contained a letter from Mr. Rumker, in 
which the time of ecli ptic conjunction, with its variations for the small 
errors of the tables, was deduced from each of the European and 
American observations. Mr. Rumker remarks, that the corrections 
of this time for the corrections of the moon’s declination and parallax, 
appearing with opposite signs in the observations on the two conti- 
nents, afford unusual facilities for determining these corrections, par- 
