104. #. Loomis— Observations of the U. 8S. Signal Service. 
from 18 to 68 miles per hour. In the case of No. 20, winds 
higher than 18 miles per hour prevailed in other parts of the 
United States, but it is doubtful whether they ought to be 
regarded as belonging to the storm here investigated. The 
average of the numbers in this column of the table is 42 miles 
per hour. The number of cases for the different points of the 
compass is shown in column 2d of the following table. 
Cases. | Mt, W. ] Cases, | Mt. W. 
North 9 i South 4 | 2 
North West 8 28 |\South Hast 0 0 
est 5 4 |\Kast 3 0 
South West 4 2 North East 6 Z 
Thus we see that in 28 of the cases, the highest wind came 
from the quarters N.E., N., N.W. a .; and in only 11 of 
the cases did they come from the quarters S.W., S., S.E. and E. 
The average direction of these violent winds was about N.N.W. 
while in Kurope it was but a little west of south. 
On Mt. Washington the highest winds range from 54 to 110 
miles per hour, the average being 80 miles. The number of 
eases for the different points of the compass is shown in col- 
umn 8d of the preceding table, and we see that in 35 of the 
cases the highest wind came from the points N.E., N.W. and 
W.; while in only 4 of the cases did they come from the points 
-. , 9H. and E. 
e average rainfall in 24 hours within these low areas was 
9:97 inches, which is considerably in excess of the usual rain- 
fall at the same stations) The amount of the rain was how- 
ever very variable, ranging from 0 to 36 inches; and there 
were ten cases in which the total rain-fall within the low area 
was less than two inches in 24 hours. In 6 of these 10 
eases the storm center passed beyond the northern boundary 
of the United States or very near to it, and it may be claimed 
that probably there was rain on the north side of these low 
areas; but in Nos. 2, 3 and 38, the center of the low area was 
500 miles south of our northern boundary. No. 21 was 4 
eculiar case. On the morning of Nov. 28, 1874, the lowest 
arometer at any of the signal service stations was 30°15 inches, 
‘ 
so that the barometer at Mobile was only relatively low, the — 
pressure being unusually high from the Atlantic to the Pacific 
cean. In preparing column 8th of the table, it was necessary 
to have a uniform rule which could be applied without bias, 
and I have regarded the term low as acadiaa all stations sur- 
rounding the storm center, where the barometer was below 30 
inches. This rale indicated no rain for the morning and after- 
noon observations of Noy. 28th, although in fact there was # 
great fall of rain and snow within the system of winds which — : 
