E. Loomis— Observations of the U. S. Signal Service. 5 
course, in a direction from northwest to southeast. This direc- 
tion is not confined to any particular section of the country, 
but occurs most frequently in the region between the Rocky 
Mountains and the Mississippi River. This course is seldom 
maintained as far south as the parallel of 30°, and after reach- 
ing its most southerly point, the storm frequently changes its 
course towards the northeast. e following table shows those 
cases in which storms have advanced towards the southeast as 
far as the parallel of 28°. The arrangement is similar to that 
of the preceding table. The first six columns describe each 
storm as long as its course continued southeasterly ; the last 
column gives some indication of the subsequent course of each 
storm. ‘The tracks of these storms are all delineated on Plate 
II, and are st ordi by the same numbers as in the table. 
American storms advancing Southeasterly. 
Xo Date. _—attade, | Lonettude.| course, |.Vgl;| Subsequent 
1/1874, Feb. 17.2-18.2| 33-27 | 86-79 | SE. | 21-8 |Unknown. 
2 April 15.3-16.3 | 41-26 | 101- 89 S.E. 21-1 |Unknown. 
3/1875. Jans 15.1-16.2| 44-27 | 106- 91 S.E. 27°1 |Unknown. 
4/1876. Feb. 3 — 4.1] 33-28 98- 80 S.E. 28°4 |Unknown. 
5 March 6.2-12.1 | 47-27 | 127%— 89 S.E. 15-7 |Unknown. 
6 May 6.3— 7.3| 33-27 100-— 93 8... 25:0 own. 
7j|1877. Jan. 4.2— 5.3] 46-28 | 100-— 90 S.S.E. | 40° 
8 Mar. 21.2—24.1 |} 42-28 | 100- 95 §.8.E. | 22°6 E 
9 ec. 19 —20 44-28 | 102-— 98 S.E. 10°0 
1 Dec. 22 -—27.2| 47-27 | 102-— 95 S.E. 29°7 IN.E 
11 |1878. Feb. 1.1— 2.3] 83-26 96— 84 §.E. 18° .E. 
12 Aug. 20,2-24.2 | 38-22 83— 81 | 8.S.B. | 15:1 |Became extinct. 
13 Nov. 16.2-17.2 | 28-24 | 102-— 93 8.8. EB. 24°0 |N.E. 
14|1879, Jan. 6.3— 7.3} 38-27 | 110- 98 S.E. 39°2 |N.E. 
15 an. §8.3-11.1| 49-27 119-— 98 S.F. 30-4 |N.E. 
16 May 4.1-— 6.1! 34-24 | 101- 96 S.S.E. | 16-1 [Became extinct. 
We see from this table that the average velocity of these 
storms while pursuing their course towards the southeast, was 
twenty-four miles per hour, which differs but little from the 
average velocity of storms in other parts of the United States. 
he lowest latitude attained by any of these storms was 224 
rees; and in only three cases did the low center reach the 
jarallel of 25 degrees. In eight cases the storm center, after 
completing its course towards the southeast, changed its course 
and proceeded towards the north or northeast. In two of the 
remaining cases the berths of the storm declined in advanc- 
ing southward, and they apparently became extinct soon after 
the dates given in the table. The same was probably true in 
the six remaining cases, but the observations are not sufficient 
to establish this with certaint y- 
