14 A Twentieth Memoir on the Law of Storms. [No. 8. 



thousand miles, from near the Nicobar Islands to Moorshedabad ; and 

 affording us some valuable lessons as to parallel Cyclones and the 

 dependence to be placed on the Barometer. It also adds an important 

 page to our history of the tracks of storms in the latitudes between 

 Acheen Head and the Andaman Islands. 



The same arrangement has been preserved in this Memoir as in the 

 preceding ones. The documents are first given and then tables of the 

 winds and weather for each day all over the Chart. This is fol- 

 lowed by a summary, shewing the grounds on which the position of 

 the daily Centres are given and comprising such other results as are 

 thought worth notice. 



Abridged Log of the Barque Iron Gem, Capt. Good, from North 

 Shields, bound to Calcutta. Civil Time. 



At noon 22nd April, 1850. — The Iron Gem was in Lat. 6° 47' N.; Long. 

 87° 49' East with winds about at (7 and 6,)* variable from N. W. Ship stand- 

 ing to the Northward. Cloudy weather, p. m. blowing fresh in heavy squalls 

 from N. N. W. to midnight. 11 p. m. the main piece of the rudder broke off 

 by a heavy blow of a sea. 



23rd April. — Weather rather moderating from 4 to 8 a. m. after which as 

 bad or worse than before, with heavy blinding squalls and sheets of rain. Wind 

 N. W. to N. N. W.; at noon from (7 to 8;) Lat. Acct. 6° 40' N. ; Long. 88° 

 25' East. p. m. increasing to (9,) with terrific squalls. Wind to W. N. W. 

 Ship hove to. 



24:th April. — Wind veering to N. W. b. W. and Westerly. Very heavy 

 squalls. Ship lying to. Noon Lat. 6° 37' North ; Long. 88° 40' E. p. M. 

 wind West, decreasing from (9,) at noon, to (4) at 7. p. m. 



25th April. — a. m. out second reefs. Noon Lat. Obs. 6° 51'; Long. 88° 

 52'. Wind West from (9) to 3 at noon. 



Abridged Log of the Ship Cowasjee Family, Capt. Durham, from 

 Singapore towards Calcutta. Civil Time. 



The Cowasjee Family passed Point Pedir at noon on the 19th 

 April. On the 20th and 21st, she had light Southerly and S. Westerly 

 breezes. 



On the 22nd April. — The wind veered from S. b. E. to Easterly, and at noon 

 was N. b. E., when Lat. 9° 21' North Long. 90° 03' East. p. m. moderate 

 breezes E. N. E. ; and at 6 p. m. to midnight N. E. with squalls at times, 

 ship standing to the N. N. W. 



* Admiral Beaufort's Numbers. 



