2 EF. Loomis— Observations of the U. S. Signal Service. 
I have compared all the storm tracks delineated on the maps 
of the Monthly Weather Review, and also po delineated on 
the International charts. I first examined the storms whic 
have prevailed in the neighborhood of the Aisorica continent, 
confining myself to those cases in which the storm center (dur- 
ing at ape a part of its course) was south of the parallel of 30° 
latitu ave divided these storms into three classes; I, 
those “hoes course was for some days towards the west: Ti. 
those whose course was towards some point between the south 
and east; III, those ying course was towards some point 
between the north and ea 
The following table Senet the leading particulars respecting 
the first of these classes. Column Ist shows the number of 
reference; column 2d shows the dates of beginning and end 
of the observed movement as lon g as the course continued 
westerly ; column 3d shows the latitude at the beginning and 
end of this portion of the path; column 4th shows the longitude 
at the beginning and end of this portion of the path; column 
course of each storm. On plate I these tracks are papenecile 
and are designated by the same numbers as in the ta 
American storms advancing Westerly. 
No. Date. Seay | apes | Couns. Sey] Sstecanent 
1|1873. June 1.1-— 2.3} 24-32 80- 86 | N.N.W. | 12°5 |Became extinct. 
2 2 —4.2| 22-24 | 82- 86| N.W. foved N.E. 
3/1874. Fe 8.1 | 24-27 82- 83 | N.N.W. | 15°4 |Moved N.E 
4 uly 2.3- 4.2| 27-29 8i— 98 | W.N.W. | 13 ecame extinct. 
5 pt. 4.3- 5.3) 25-32 65- 70 | N.N.W. | 22°5 |Moved N.E. 
6|1875. Sept. 8.3-17.1| 14-29 | 59- 96 | W.N.W. | 13°2 |Moved N.E. 
7\1876. Sept. 15 -18.1 1-43 69- 80 | N.N.W. | 2 ed KE 
8/1877. Sept. 22.2-30.3 | 12-26 65- 88 | W.N.W. | 11°1l |Moved N.E 
9 \187 2 -18 4-21 75— 97 | W.N.W. | 14° ty) 
10 p - 11-28 59- 81) W.N.W. | 9 oved N 
11 Sept. 12 -18 14-29 7- 60 | N.W. 9°6 |Moved N.E 
2 Sept. 24 -30 14-28 70- 73 | N.N.W. | 5:3 |Moved N.K. 
3 Sept. 29 -34 22-30 58-— 70 N.W. 9°1 |Moved N.E. 
4 9 -13 15-26 40— 52 N.W. 72 Moved N.E 
5 8 17-30 B6-— 55 N.W. 13°2 |Moved N. 
6 Nov. 25 -30 15-17 52— 73 | West. | 11-7 |/Unknown. 
7/1879. Aug. 13 -17 18-30 60-77 | NW. 8°2 ved N.E. 
18 Aug. 15 -16 14-14 43— 51 West. ? nknown. 
19 23 16-29 87- 94 N.W. 8-2 |Moved E. 
20 - 15-31 78— 90 N.W 8'1 |Became extinct. 
21 Oct. 10 -17 14-43 70- 90 N.W. 11*1 |Moved 
221880. Aug. 6 -14.2| 12-32 T7-103 | W.N.W. | 12°9 |Disappeared 
23 Aug. 15 ~19 13-2 62— 78 | W.N.W. | 12°0 |Moved N.E. 
24 Aug. 24 -31 26-33 W.N.W. | 10:0 | Disappeared. 
