and Texas are alike incapable of such effect upon the
atmosphere of Central America and Mexico. These monsoons commence in May,
and prevail until October, and the temperature of the air where they blow
ranges with considerable regularity between 76 deg. at night, and 84 deg. at
mid-day, on the Malabar coast, and a trifle lower in Central America.

At Fort Fillmore, El Paso, New Mexico, in latitude 32 deg.03, the mean
temperature for

May is 68 deg.
June " 78 deg., 5'
July " 80 deg., 1'
August " 83 deg., 8'
September " 77 deg., 9'
-------
And for the whole period, 77 deg., 1'

At Santa Fe, New Mexico, the mean for
May is 66 deg., 9'
June " 72 deg., 5'
July " 75 deg., 3'
August " 72 deg., 9'
September " 62 deg., 3'
-------
And for the whole period, 69 deg., 3'

Mean of the two united, 73 deg., 2'

The mean of Western Texas is about 2 deg. higher than at Fort Fillmore, and of
Utah not materially different; and the mean of _Central_ Asia between 38 deg.
and 45 deg. does not materially vary from them.

Now, it is perfectly evident that during May and September the temperature
of Central Asia is far below that of the Indian Ocean and India, and never
materially exceeds it. Central Asia is hot, "burning," if you please,
compared with more elevated, fertile, or better watered territory _in the
same latitude_, and so it has been characterized; but not so, compared
with the Indian Ocean, or India, where the sun is vertical. During the
greater part of the time, therefore, that the monsoons are in full blast,
Utah, Texas, and New Mexico, and Cobi, and the burning plains of Asia, are
from 5 deg. to 10 deg. colder than the temperature of the place where the monsoons
are blowing. Would not such a fact be perfectly conclusive in any other
science except theory-swathed meteorology?

2d. The theory assumes that the heated air has an ascensive force, which
causes it to rise and create a vacuum, and this vacuum, by its suction,
draws in the adjoining air, which immediately ascends. The adjoining ai