AMERICAN 
JOURNAL OF SCIENCE AND ARTS, 
[THIRD SERIES] 
Art. L—Results derived from an examination of the United 
States Weather Maps for 1872 and 1878; by Ex1as Loomis, 
Professor of Natural Philosophy in Yale College. With two 
es. 
(Read before the National Academy of Sciences, Washington, April 24, 1874.) 
THRovGH the kindness of Brigadier-General Albert J. Myer, 
Chief Signal Officer, U. S. A., I have received a weather map 
for 74 a. M. daily, since Jan., 1872. This series of maps for 
the years 1872 and 1873 I have undertaken to discuss, in order 
to determine what information can be derived from them 
oe the laws of storms. To prepare myself for this dis- 
th 
and also a variety of other circumstances which it was supposed 
Am. Jour. Scr.—Tuirp ‘ orgee: Vou. VIII, No, 48,—JuLy, 1874. 
