800 =O. T. Sherman—Height of Land and Sea Breezes. 
Art. XXXVI.—Observations on the Height of Land and Sea 
Breezes, taken at Coney Island ; by O. 'T.. SHERMAN. 
THE following observations were taken at Coney Island with 
the captive balloons of the American Aeronautic Society, 5. 
. King, aeronaut in charge. Captain Howgate furnished the 
observer. 
With the exception of the hotels, no height rises to inter- 
rupt the flow of the wind. We might expect, therefore, to 
find the sea breeze and its counter current undisturbed. The 
standard thermometer employed was of the Signal Service 
pattern, made by James Green, and carefully tested by the 
observer. The aneroid barometers were kept compared with 
a standard mercurial instrument at the surface. The ane- 
mometer, of Robinson’s pattern, furnished by James Green, 
was used to measure the velocity of the wind at the top of the 
ascent, and also at the bottom. In the other cases, the forces 
were estimated. 
The record was commenced as the balloon left the earth 
and continued without interruption till the balloon attained its 
highest point. At the top, the velocity of the wind was 
recorded by a “five minute” observation. On the descent the 
same plan was followed. 
rom the barometric readings, reduced to the mercurial 
curve are given in the annexed table. The force of the win 
was treated in a like manner. The observed directions were 
time was employed. The results are given on the following 
page. 
A slight inspection of the return rates of change shows that the 
return current has influenced the temperature of the air around 
it to a noticeable extent. 
‘We may consider the observed wind as composed of the 
wind produced by a great storm in progress, and the sea OF 
