a 
IN THE MONTH OF FEBRUARY, 1842. 
163 
| 
POSTS. LATITUDE.| LONG. ! POSTS, LATITUDE.| LONG. 
Fort Gibson, Arkansas, 35°47’ N.| 95°19’ || Augusta Arsenal, Georgia, 83°27'N.| 81°33’ 
Fort Leavenworth, Missouri, 39 28 95 14 |] Alleghany Arsenal, 40 28 80 7 | 
Fort Towson, Arkansas, 33 36 95 4 Fort Niagara, 43 14 79 7 | 
Fort Smith, Arkansas, 35 20 94 21 Buffalo Barracks, New York, 42 53 78 55 
Fort Wayne, Arkansas, Carlisle Barracks, Pennsylvania,| 40 12 77.10 
Fort Jesup, Louisiana, 31 35 93 42 || Fort M‘Henry, Maryland, 39 18 76 85 
Fort Snelling, Towa, 44 53 93 12 |; Fort Monroe, Virginia, 36 50 76 22 
Fort Atkinson, Iowa, 43 0 92 1 || Madison Barracks, New York, | 43 45 6.1 
Fort Crawford, Wiskonsin, 43 4 91 7 || Fort Columbus, New York, 40 41 74 1 
Jefferson Barracks, Missouri, 88. 82 90 25 || Fort Wood, New York, 40 42 wa 
St. Louis Arsenal, Missouri, 38 37 90 21 || West Point, New York, 41.25 74 0 
New Orleans Barracks, 29 57 90 9 || Watervliet Arsenal, New York,| 42 45 73 45 
Fort Winnebago, Wiskonsin, 43 32 88 53 || Plattsburgh, New York, 44 42 73 32 
Fort Mackinac, Michigan, 45 46 84 40 || Fort Adam, Rhode Island, 41 20 71°49 
Fort Brady, Michigan, 46 29 84 18 || Fort Constitution, New Hamp-| 43° 4 70 45 
Fort Robert Gamble, 30 25 83 31 shire, 
Dearbornville Arsenal, Michigan,) 42 24 83 2 || Fort Preble, Maine, 43 39 70 20 
Detroit, Michigan, 42 24 82 58 || Fort Kent, Maine, 47°15 68 46 
Fort Gilmer, Georgia, 380 40 82 52. || Fort Fairfield, Maine, 46 50 68 0 
Fort Gratiot, Michigan, 42 54 82 25 |) Hancock Barracks, Maine, 46 8 67 51 
Fort Henderson, Georgia, 30 45 82 10 |] Fort Sullivan, Maine, 44 54 66 56 
I have also received observations from eighteen posts in Florida, but have made little 
I have received observations of the thermometer, etc., but not of the baro- 
use of them. 
meter, from 
the following places. 
STATION. 
Mount Atlas, Carroll Co., 'Tenn., 
Carmi, Illinois, 
Indianapolis, Indiana, 
Washington, Michigan, 
St. Mary’s, Georgia, 
Ravenna, Ohio, 
Lockport, New York, 
Gaines, New York, 
Winchester, Virginia, 
Williamsburgh, Virginia, 
Sacketts Harbour, New York, 
Utica, New York, 
Clermont Academy, near Frank- 
ford, Pennsylvania, 
Trenton, New Jersey, 
Malone, New York, 
Albany, New York, 
Middleton, Connecticut, 
Grafton, Vermont, 
Newport, Rhode Island, 
Portland, Maine, 
Charleston, Maine, 
Eastport, Maine, 
LATITUDE LONG. AUTHORITY. 
36° 0’ | 88°30’N Dr. John Travis. 
38 5 | 88 13 | W. H. Sorgenfrey. 
39 55 | 86 5 | John Wheeler. 
42 43 | 82 56 | Dennis Cooley. 
30 44 | 81 46 S. R. Williams. 
41.10° | 81 18 Newton Peck. 
43 11 | 78 46 Edward Giddins. 
43 16 | 78 26 M. Mason, M.D. 
39 11 | 78 13 | Anonymous. 
37 16 | 76 40 Alexander D. Galt. 
43 55 | 75 57 Zeno Allen. 
43° 7 | '75 13 | S. Aylesworth. 
40 0 | 74 55 Samuel S. Griscom. 
40 14 | 74 30 | Francis A. Ewing. 
44°51 | 74 15 E. N. Winslow: 
42 39 | 73 45 | Dr. Phillips Ten Eyck. 
41 33 | 72 39 | Joseph Barrett, M.D. 
43 ll | 72 85 | A. Putnam. 
41-29 4 71.10. | -Ri J. Taylor. 
43 39 | 70 20 | Samuel Moody. 
45 5 | 69 0 E. M. Thurston. 
44 54 | 66 56 S. B. Mitchell. 
Some memoranda of the weather, but without observations either of the barometer or 
thermometer, have been received from several other stations. As I intend this paper for 
acontinuation of my former investigations, I shall dispense with a good deal of prelimi- 
nary explanation which might otherwise seem called for. 
anneanaeneneareeeeees 
it soseoren 
