306 = Notices of Eminent Men deceased in Great Britain. 
An analysis of the arseniates of copper.—Observations on Dr. 
James’s powders, with a method of preparing a similar substance in 
the humid way.—Observations and experiments upon oxygenated 
and hyperoxygenated muriatic acid—An analysis -of corundum.— 
Observations on the chemical nature of the humors of the eye— 
Inquiries concerning the nature of a metallic substance, under the 
title of Palladium.—On the action of platinum and mercury on each 
other. | 
“Tn the latter years of his Jife, which could not have reached three- 
score, he appears to have abandoned chemistry, and to have fallen 
on speculations wholly unworthy of being noticed from this place. 
_4, Mr. Suiruson, then called Macie, and an undergraduate, had 
the reputation of excelling all other resident members of the Uni- 
versity in the knowledge of chemistry. He was early honored by 
‘an intimate acquaintance with Mr. Cavendish; he was admitted into 
- the Royal Society, and. soon after presented a paper on-the very cu- 
riois. concretion frequently found in the hollow of bambu. canes, 
named, Tabasheer. . This he found to consist almost entirely of si- 
lex, existing in a manner similar to what Davy long afterwards dis 
covered in the epidermis of reeds and grasses. i 
Mr. Smithson enriched our Transactions. with séven other commu- 
nications :—A chemical analysis of some calamines.—Account ofa 
discovery of native minium.—On the composition and crystallization 
of certain sulphurets from Hue! Boys in Cornwall.—On the compo 
sition of zeolite—On a substance procured from the elm-tree, called 
mine.—On a saline substance from Mount Vesuvius.—Facts rel- 
ative to the coloring matter of vegetables. 
He was the friend of Dr. Wollaston, and at the same time/s rival 
in the manipulation. and analysis.of small quantities. Aya 0 &pls 
402 Bporaci. Mr. Smithson fréquently repeated an occurrence with 
much pleasure and exultation, as exceeding any thing that could be 
brought into competition with it;—and this must apologize for my * 
troducing what might otherwise be deemed an anecdote too light and 
trifling on such an occasion as the present. es 
Mr. Smithson declared, that happening to observe a tear ghiding 
down a lady’s cheek, he endeavored to catch it ona crystal vessel 
that one-half of the drop .escaped, but having preserved the other 
half, he submitted it to reagents, and detected what was the 
microcosmic salt, with muriate of soda; and, I think, th 
more saline substances, held in solution. 
n called 
ree or four 
