METEOKOLOGIC AL ABSTRACT. 
509 
c. 
METEOROLOGICAL ABSTRACT. 
The meteorological abstract was prepared from the private journal of Dr. 
Kane and the notes in the log-book of the Advance. 
The latitude and longitude, ocean currents, directions, and force of winds, 
are given as in the " log." 
The following abbreviations, adopted by Lieutenant Maury from those of 
Captain Beechy, are used to denote the state of the weather : 
b for blue sky. 
c " clouds. 
d " drizzling rain. 
/ " thick fog. 
g " dark stormy weather. 
h " hail. 
I " lightning, 
m " misty or hazy. 
0 " cloudy. 
STATE OF WEATHER. 
p for passing showers. 
q " squally. 
r " continuous rain. 
s " snow. 
t " thunder. 
u " ugly threatening weather 
w " wet dew. 
A star * under any letter denotes 
an extraordinary degree. 
The force of the wind is marked as follows : 
0 for calm. 
1 
2 
3 
4 
5 
6 
light airs 
light breeze, 
gentle, 
moderate, 
fresh, 
stormy. • 
7 for moderate gale. 
8 " fresh gale. 
9 " stormy gale. 
10 " heavy gale. 
11 " storm. 
13 " hurricane. 
The state of the weather, and the direction and force of the wind, were noted 
hourly ; the daily mean and the true direction have been given in the abstract. 
Three hourly observations (with some exceptions) were made for the temper- 
ature of air, and water, and atmospheric pressure, of which the daily mean read- 
ings are given in the abstract. The readings of the aneroids are given uncor- 
rected, as mere approximations. For all of this labor I am indebted to the in- 
telligence and zeal of my friend, Mr. Schott, of the Umted States Coast Survey. 
E. K. K 
