File:On three several hurricanes of the Atlantic, and their relations to the northers of Mexico and Central America, with notices of other storms (1846) (14779657934).jpg

Identifier: 60721150R.nlm.nih.gov
Title: On three several hurricanes of the Atlantic, and their relations to the northers of Mexico and Central America, with notices of other storms
Year: 1846 (1840s)
Authors: Redfield, W. C. (William C.), 1789-1857
Subjects: Cyclonic Storms
Publisher: New Haven : Printed by B.L. Hamlen
Contributing Library: U.S. National Library of Medicine
Digitizing Sponsor: Open Knowledge Commons, U.S. National Library of Medicine

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e an opportunity for compar-ison. The mean of my barometer for that and the five previous years, at 6 and10 a. m., 2,6 and 10 p. m., unreduced, was 30-113 in.; elevation of cistern betweenten and fifteen feet above the sea level. The interior of the tube is -26 in. andmy readings have been taken from a point between the summit and line of contactof the column, estimated as equal to a level surface. In 1842 my barometer wasremoved to another station, some six feet higher; and the later annual means in-duce a suspicion that the index readings may have slightly lessened since that pe-riod ; perhaps 010 or -014 :—but this is by no means certain. The corrections made in this paper of the index readings of some ship barome-ters, are the results of rough comparisons made, in this port, with my own barom-eter. —T \i» t nk) \CM OJB ////>; N77/7 ..■•. n,l\ 7 P ///• OBSERVATION , Charleston *3 S IV.IilL.lll IJ ,;, I- u I. , ( fla 3S JA l)i i mini.i 1* Jl. ■ ••.. I. -- ii S4Ju
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N.B..The-arrow points in ffu> sev»ral ship trarke indicate only the,general ■ - ■ Mexican Norther and Bermuda Gale of Oct. 1842. 27 Remarks and Generalizations. I. Our accounts of this storm are more complete for the north-ern or left hand side of its axis than on its opposite or southernside, till after it had crossed the Gulf Stream. This seems owing,in part to the course pursued by the gale, and its relations to thecommon routes of commerce. The less violence of the galeat Vera Cruz than in the heart of the Gulf of Mexico, is in con-formity with the usual character of the Northers on that coast,and with the general fact that storms which pass from elevatedlands, or even from low countries, do not often act with great forceat the surface of the ocean, till at a considerable distance from thecoast; this being especially the case with that side of the stormwhich exhibits an off-shore wind. II. The rotative character of this gale is well made out by theobserved winds as they ap

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