Miscellaneous Intelligence. 431 
At sea near Martha’s Vineyard.—Mr. Isaac Pierson saw, while 
entering Martha’s Vineyard Sound, 100 meteors in two hours between 
30" p.m. of Friday the 10th of August—omitting the 
quarter hour from 10° 45 to 11". During the first half hour the sky 
was about one-eighth covered with clouds. 
V. MISCELLANEOUS SCIENTIFIC INTELLIGENCE. 
1. National Academy of Sciences.—The sixth stated session of the 
National Academy of Sciences was held at Northampton, ar on the 
7th of August last. _The following is a list of the papers re 
On a photometric method, by Prof. O. N. Roop. 
(2.) On a normal map of the solar spectrum, by Prof. Wotcorr Grass. 
(3) On traces of glaciers under the tropics, by Prof. Louis AGAsstz. 
(4.) On the secular acceleration of the moon’s mean motion, by Jonx 
N. SrockweE i; rea Dr. B. A. Gould. 
oO. 
Pro Per 
(6.) On the morphological value and relations of the human hand, by 
Dr. Burr G. Wivper. 
(7.) On the correlation of gravity and temperature, by Purny E. ge 
(8.) On the grounds my analogy between linguistic science and t 
physical sciences, by Prof. Wu. D. Warrnry. 
On the limitation of homologies, by Prof. Louis Acass1z. 
(10.) Ou a new methed of optical analysis, by Prof. Wotcorr Grass. 
(11.) On recent soundings in the Gulf Stream, by Mr. Henry Mircne.t, 
U. 8. Coast Survey. 
(12.) On repeated linear substitutions, by J. E. Oxrver. 
(13.) On the metrical system of weights and measures, by Samuen ~ 
Rueates. 
i4.) On some points in the geological structure of southern Minne- 
sota, with reference also to the period of denudation of the older forma- 
tions, by Prof. James Hatt. 
( A new theory of planetary motion, by Prof. T. Stro 
(16.) On the linear evaluation of surd forms, by Prof. James te Wirson: 
(17.) On the study of young aii and its bearing ti the progress 
of paleontology and zodlogy, by Atex. Acassiz; read by Prof. Louis 
Agassiz. 
Se On a remarkable rainbow, by Prof. Per 
19.) An satrap in 1 regard to sound in it economical applica- 
tion, a Prof. Joserpx Henr 
(20.) On the geographical distribution of fishes in the waters of the 
rgeee, by Prof. Lov 
(21.) On the sta june of American soldiers, by Dr. B. A 
(22.) On the — of the si of the sou on oe ete obtained 
by barometric measurements, by 
(23. astronomical pboteigenplhy; by Liven M. Rurner 
(24.) On the reduction of photographic observations, with pee etermin- 
ation of the posi on = Pleiades trom photographs by Mr. Ruther- 
furd, by Dr. B. A. G 
eel On a table pe facilitating the conversion of longitude and lati- 
tude into right ascension and declination, by Wa. Ferre. 
