British Association for the Advancement of Science. 279 
. first and second chart contained the result of this part of the ex- 
amination; and he explained how the arrows showing the direc- 
tion of the wind at the several stations were all on the right 
hand side of the several circles flying from the south, while at 
the stations at the left hand, or towards the east of the chart, 
they were all coming from the north. After tracing a variety of 
storms in north latitudes, and being impressed with the regularity 
with which they appear to pass to the North Pole, and always 
revolved in the same direction, viz. opposite to the hands of a 
watch, or from the east roond by the north, west, south and 
east,—he was led to conclude, that in accordance with the order 
of nature, storms in south satitadies would be found to revolve in 
a contrary direction to that which they take in the northern hem- 
isphere. He earnestly sought for facts, to ascertain if this were 
the case, and had obtained much information confirmatory of the 
truth of the conjecture, before he was aware that Mr. Redfield 
had formed the same opinion. The general phenomena of these 
_ storms will be understood, if the storm, as a great whirlwind, be 
represented by a circle, whose center is made to progress along a 
curve, which generally approaches the parabolic, the circles ex- 
panding as they advance from the point at which the storm be- 
gins to be felt. He pointed out how his views were illustrated 
by the disastrous storm of 1809, experienced by the East India 
fleet, under the convoy of the Culloden line-of-battle ship, and 
the Terpsichore frigate, and four British men-of-war, which left 
the.Cape of Good Hope, about the same time, intending to cruise 
about the Mauritius. Some of these vessels scudded and ran “in 
the storm for days; some by lying-to, got almost immediately out 
of it, while others, by taking a wrong direction went into the 
heart of it, foundered, and were never heard of more ; others, by 
sailing across the calm space, met the same storm ‘o-different 
parts of its progress and the wind blowing in opposite directions, 
and considered and spoke of it as two storms, which they encoun- 
tered; while others, by cruising about within the bend of the 
curve, but, beyond the eircle of the great whirl, escaped the 
storm altogether, which had been for days raging on all sides of 
them. This led him to draw. the very important practical con- 
clusion as to how a ship should act when she encountered a gale, 
SO as to escape from it. By watching the mode of veering 
of the wind, the portion of a storm into which a ship is fall- 
