214 
quently the upper strata are more distant from the axis of the 
cylinder than the lower, which have therefore a tendency to 
ascend in order to compensate the diminished density above. 
But that the storm itself does not originate from this kind of 
suction, will be evident on a closer consideration of the observa-_ 
tions. I will take as an example the hurricane of the 2nd of 
August, 1837, for which we have simultaneous observations at 
St. Thomas and at Porto Rico, which are shown in comparison 
in the following table :— 
Mean Time. 
1 18 
Aug. 1. 
Aug: Age. 
The dead calm suddenly interrupting the fiercest raging of 
the storm from opposite directions, which is shown in the regis- 
DOVE ON THE LAW OF STORMS. 
St. Thomas. 
Porto Rico. 
Barom. Wind. 
wt 
337 
335 
334 
334 
332 
3315 
330 
328 
325°5 
324 
324 
322 
318°5 
SLA Wi 
316°5 
316 
316 
316 
320 
21 
322 
323 
324 
326 
328 
329 
330 
331 
332 
333 
333°25 
3335 
335 
336°5 
336°75 
3 
Yru—.,—Y 
Increasing 
Hurricane. 
Rr 2aee eee ae 
calm 44442425" 
ay 
mn 
= 
CY 
CA tA tn TD CA TA 
Hurricane. 
' 2bR RP ae 
HANNAN MAmD DM 
tempest. 
Barom. 
aos 
10 
1 
12 
153 
16 
wt 
333°28 
332:16 
331-03 
329°90 
315-27 
328°43 
332:16 
Wind. 
N.N.E. 
E. 
Hurricane. 
Ss: 
