446 Miscellaneous Intelligence. 
Mr. C. C. Sheafe said he had a pipe, connected with bellows and 
freely suspended in the air, which had been in use about eight months, 
and which was now as fragile as glass. 
Dr. N. C. Keep stated that he had used small quantities of Gutta 
Percha for several years. He had observed that when allowed to rest 
untouched for a considerable length of time, it uniformly lost its te- 
nacity ; but on being worked over again with the aid of heat, it ap- 
made of it was in dental operations, principally as a temporary 
filling in sensitive cavities, etc. 
6. Army Meteorological Register for twelve years, from 1848 to 
1854 inclusive ; compiled from observations made the officers of 
the Medical Department of the Army at the military posts of the Uni- 
ted States. Prepared under the direction of Brevet Brigadier General 
Tuomas Lawson, Surgeon General United States Army. Published 
4to., with several maps. Washington: 1855.—This large and fine 
volume, for which the world is indebted to the war department of our 
government, and to the labors especially of the medical staff of the army, 
and for its final elaboration to Assistant Surgeon Ricuarp H. CooutpeE, 
U. 8. A., and his associate, Lorin Buopcer, has an interest, which 
belongs to no similar volume hitherto published on the subject, derived 
from the very wide range of the continent over which its fifty-one mete- 
orological stations extend, through the east, the west, and far west, be- 
tween the meridians of 67° and 123° and latitudes 26° and 47°. The 
tables are not however complete for each station, through the twelve 
years. The volume mainly consists of tables of the observations for 
each month of each year, presenting those of all the stations for the 
same month together, and other tables giving summaries of the results 
for each branch of the observations, the temperature, winds, rains, etc., 
all of which are drawn up with fullness and evident care. There are 
also other tables of “consolidated tables and summaries,” bringing to- 
gether the results at each station. Following these tables, there are five 
isothermal charts of the United States, showing the mean distribution of 
and prepared by L. Blodget. The remaining eighty pages wy 
: ; ats 
and in explanation of several Hyetal or Rain Charts, made out by 
Lorin Blodget. As for the isothermal lines, each of the seasons, ant 
the year also, has a separate chart devoted to it, and represents 
inches, five inches, seven inches, ten, and so on, making separate areas 
on the charts, and thus displaying the relative dry or wet character of 
‘different portions of the United States across the continent. More ob- 
Servations at a greater number of stations are required, to give full 
accuracy to such charts. 
