300 Miscellaneous Intelligence. 
On a series of new combinations of Ammonia Picric Acid and Metallic Bases; by 
M.-C. Lea. Presented by B. Silliman, Jr. 
On the Combustion of Wet Fuel; by B. Silliman, Jr. 
Theory connected with the Solar ‘Spots ; by C. W. Hackley. 
Description of a new Portable Coffer Dam for Potala under water; by E. 
unt. 
‘On ag Variable Stars; by B. A. Gould. 
Modern Warfare ; its science and art; by E. B. Hun 
Abstract of the principal results of the Sr earvations ‘of Oe ae at Van Rensse- 
laer rein made by the second Grinnell Expedition under command 
Kane, U.S. Navy, tstay 1858, ’54, 55, from a reductio — discon by Charles 
A. Schott, Assistant Coast Survey Presented by A. D Bac 
On Catachroism, a new optical property belonging to peers ' Crystalline sae 
with some remarks on a riza ~ by reflection from colored surfaces; by M. @ 
Lea. Presented by B.S 
On a new theory of Light, rte by J. Smith, of Manchester, England ; by 
~ Some reflections on ~ Observations of the Solar Spots and of the Magnetic Va- 
riations ; by James Hya 
On the Actinism of he ‘electric discharge in vacuum tubes ; by W. B. Rog 
Investigation of the pro sot regarding the existence of a lunar tidal wave rae the 
great von nese lakes of North America 
On Sy daitdes pote - Seoquio d of Chromium; by E. N. ord. 
eries of investigations, on the assimilation of gaseou ve ogen of plants, 
conducted during the year 1857, 1858 and 1859, at Rothanatech England ; by E. 
“Vita a of the Blind, with an Peat wh Life Table; by E. B. Elliot tt 
Infl of difference in the mean vel of winds from the different — # 
the compass in modifying the mean emetii oe the pcr rae currents 0 
United Stat e direc e expense of the Smt sou 
Institution, hentai en —— in its odie: for eo years 1854, 1855, 1856 
and Rat by James 
attempt to estimate the ‘Height, Velocity, cc., of the Meteors of the evening 
of Taly 20, 1860; by H. M. Harman 
n the meteors of 1859, Aug. 11, and 1860, July 20; by B. A. G Gould. 
On oe Induction-Time in Electro Magnets ; by A ‘A. D. Bache and J. E. Hilgard. 
se by fire of pe de aeegg om 1 Bakery in Boston, due to Spontaneous 
atatt tion ; by E, N. Hor: 
seo rvations ‘on Hydraulis ¢ Cetneni by Q. A. Gilmore. Presented by E. 5. 
On ss Motions of Uranus; by Truman Henry Saffo re 
Fire Damp Explosions in Collieries by lighting with co as; by E.B 
The: Meter of July 20th, as seen from Washington, Dotahess County, 
PY Sp s Hyatt. 
me remarks on the Open Sea of the Arctic Regions; by W. W. Wheildon. 
ont he shades or of - Atomic ier of Chemistry, with a proposition of a 
B. Hun 
New coe ; 
Hypothesis; by Clinton Roosev 
On the production of Ethyla amine i reaction of the Oxy-Ethers; by M. 0. Lea. 
Presented by B, Silliman, Jr. 
Abstract of the eine results of the astronomical observations at Van Rensse- 
laer harbor and other places near the northwest co ast of Gr mae made by the sec 
_ ond Grinnell Expedition, E, e, U.S. Navy, during 
1858, 54, 65, from a reduction = sonarecges n by Charles A. “Schott, pasties Coast 
new ee Chrome. Linas pot the Violet, Green and Red Modifications of 
rsford. 
Time Necessary to Double the Pressure of Steam under certain circum 
stances; and the practical lessons therefrom ; by James Hyatt. i 
ones. Views on Mechanics and Mechani sm, with inferences on Organisms j 
On the nitric acid and ammonia in rain water, collected Sept., 1859, ce New 
York and Liverpool about the middle il of the Atlantic Ocean ; by E. P ugh. 
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