318 Temperature of Winter Storms. 
from the convergence of the lines of longitude at increased dis- 
tances from the equator, and may be aided in some degree by the 
greater horizontal expansion or diffusion of the several storms 
which is often found to take place in the higher latitudes. 
Distripution or TEMPERATURE DURING THE StorMs.—Though 
unable to detect any controlling or characteristic influence of 
temperature in the development or progression of great storms, 
other than is involved in the induced or the incidental phenomena 
of these storms, I present here a summary view of the thermometric 
observations made in the extensive region under review, during 
the observed progress of the two Cuba storms. So many of the 
observations obtained as can be comprised on a single page are 
shown in Table V, which follows :—(See page 319.) 
In presenting the observations from the military posts, in this 
table, I have taken those of sunrise and 3 p. m. because they are 
accompanied by observations of the wet bulb thermometer ; al- 
though the observations made at 94. m, and 9 pv. Mm. might afford 
better indications of the thermometric effects induced by, or at- 
tending, the storm. The observations from other places, when 
taken at 6 a. m. are deemed as nearly equivalent to those for sun- 
rise at the beginning of October, and those for 2 Pp. m. or 2°30 as 
being sufficiently accordant with those made at 3 p. m. The ob- 
servations made at other hours are so specified in the first columns 
of the table. 
Temperature or Wiyter Srorms.—If there be any apple — 
ciable results shown in Table V, they are perhaps found in @ 
slight reduction of the local temperature in the areas of the two 
Cuba storms, while south of Cape Hatteras, and an increase of 
the local temperature when in the higher Latiiacieds as also in the 
storm from the lake basin. In colder months, and particularly 3 in 
the winter season, a marked increase of temperature in the 
of the storm is commonly observed in the United States and 
Canada. This increase appears to result, mainly, from the gee 
graphical distribution of temperature in the different seasons 
from the revolving and progressive character of the several storms: 
For it will aniily. be seen, that on the approach of a great storm 
from the lower latitudes by the usual routes, while revolving. Lees 
oa to > left, ©), its first effect will be to bring in the warm 
sin obit LR, a and when the axis of the 
ra tanenopenrily follows and 
