210 On the Avoidance of Cyclones. 
October 29th, 4 A. M., bar. 29°748; symp. 29°652; an. 29°744 
temp. air 78°; water 78°; wind W.S. W., 5. The weather has 
been improving much during the night.—9 A. M,, bar. 29°853; 
symp. 29-830; an. 29°850; temp. air 80°°8; wind light from the 
westward; weather very fine. Very respectfully, 
ANTON SCHONBORN, 
Assistant Astronomer. 
U.S. Ship Vincennes, November 9th, 1854. 
During the day we had pleasant weather. A steady south 
wind blew all the morning, advancing us speedily on our way to 
the north. In the afternoon the wind freshened, hauling to 
8.5. W. e barometer and sympiesometer had been falling 
since 8 p. a. of the previous day, and stood at 3 p. M. at 29-717 
and 29-710; temp. air 81°1; water 78°4; wind S.S.W,, 7. 
magnificent. The ed edges of the cumuli to con- 
trasted finely with the dark appearance of the cloud-bank which 
to rise on the izon. South and westward the upper 
vehement from 8.S.W. The barometer began to rise after half 
past 9 o’clock. Towards midnight the weather moderated 
slightly. The wind blew in gusts from S. W. veering by de- 
grees to westward and some showers of rain fell. At 4 A. M. 0? 
the 10th the force of the wind had greatly diminished, hauling 
to W.N.W., and the weather cleared up. : 
It is a probable that we were in the southeastern wing of a 
cyclone. From the collected facts the following diagram has 
