1839] 



to develop the laic of Storms. 



381 



In the gale of wind at Madras in October 1836: — 



30lhacl2A.M. 'i9.707 N. Approacliing a gale. 



30th— 1 P.M. .586 , N. Brisk gale. 



30th — 2 .321 N. Do. do. [gale. 



30th — 3 .269 N. At times a violent 



,,,, 4 .111 N. Very violent gale. 



....- 5 23.891 ^ 266 N. Approaching to a 



— 6 .625^ [hurricane. 



I .340 N. Do. do. 



7 .285 S 



7- 45 m.— .285 



8- 30 m.— .725 



7-45 m. — .285 ? K^rj N. Approachingacalm. 



calm From 7-15 to 7.45 



; '^^ awful lull. 



— 9 29.027 \ S. A furious hurricane. 



... — 10 ' .258 — A strong gale. 



.... — 11' • .415 — Very strong wind. 



In Colonel Reid's book there are given several registeries of the baro- 

 meter during storms, but these having been made on board of ships (which 

 probably occupied different places at the different times of observations) 

 are not available for our present purpose. There is, however, one 

 hurricane (which occurred in March 1836 at the Mauritius), in which 

 the barometer was not only registered on shore, but that too, with more 

 than ordinary care :* thus — 



Mean Time. Barometer Hourly Direction Remarks, 



inch es. var. of wind 



March 6 at 6 A.M. 29.220. from S. to E. 



^ .050 • 



.\20\ E.N.E. to S.W.byW. - 



I .137 



_ 10 28.845' Do. to Do. 



\ .150 



12 28.545 [ Do. to Do. 



107 I % 



o 



— 2 P.M. 2S.33o) N. E. to S. W. 



1 .037 



, — 4 28.255^ S. by W. moderate. 



— 5J . 28.235 , calm. 



- 7 28.275 I , . 



— 8 28.420 S 



Varying with the barometer, is likewise the intensity of the storm, as 

 will be seen with reference to the above five cases, thus — 



Storm observed Interval between the 



at . begin, and mid. mid. and end. 



D. H. D. H. 



Madras in 1797 2. 2 , 0.16 



— 18 '8 0. 5 0. 2 



1820 1.11 0. 9 



. — 1836 , O.IO 0.4 or 5 



Mauritius — 1336 0.22 0,11 Doubtful. 



* Reid p. 155, 



