1852.] A Twenty-first Memoir on the Law of Storms. 287 



noon ; Ther. 84° ; Noon Lat. Obs. 10° 25' North ; Long. Chr. 83° 55' East. 

 P. m. to Midnight, weather fair. Wind S. S. W. to South. 



Extract from the Log of Ship Mary Ann, Capt. Darby ; from Swan 

 River bound to Madras. Civil Time. Forwarded by Capt. Biden. 



Wednesday, April 30th. — Light winds and variable from S. W. to North 

 with heavy rain during the night. Bar. 29.67; Aneroid 29.65. Very- 

 close and sultry. Ther. 84 ; Lat. Obs. 9° 48' N. ; Lat. by double Alt. 9 ° 

 50' N. ; Lat. by Obs. 9° 47' N. ; Long, by Chr 81° 33' 48°" E. 



Thursday, May 1st. — First part light breeze from the North. Noon 

 wind variable from the Westward and North with rain ; double-reefed 

 topsails at 4 p. m. During the night very dull and oppressive weather, a 

 few stars appeared but unable to obtain sights. Lat. by Account 10° 31 . 

 N. ; Long, by Account 81° 8' E. ; Bar. 29.60 ; Aneroid 29.60 ; Ther. 81. 



Friday, May 2nd. — Strong gale and very variable from N. N. E. to N- 

 W. with heavy rain, never ceasing in the 24 hours ; during the night much 

 heavy thunder and lightning in the Northern quarter, close reefed topsails 

 and furled all but main topsail: 8, hove too under close-reefed main 

 topsail. 3 p. m. Barometer still falling to 29.40. Sent down royal yards 

 and made the ship snug for the night. Noon, Lat. by Acct. 10° 38' N. ; 

 Long, by Acct. 81° 17' E. ; Bar. 29.52 ; Aneroid 29.53 ; Ther. 82. 



Saturday, May 3rd. — Blowing a severe gale with heavy rain and terrific 

 squalls at daylight ; at 4 a. m. Barometer 29.30. Ship lying to under 

 close-reefed main topsail. Noon, Barometer 29.33 ; p. m. still blowing 

 hard, with less rain toward evening. Midnight, Barometer 29.30. Wind 

 from West to S. West. 



Sunday, May 4dh. — A. m. blowing still a gale, and sea much confused, 

 lying to under main topsail. Noon a most fearful sea struck the ship, and 

 filled the deck full of water. No sights. Lat. Acct. 11° 49' N. ; Long. Acct. 

 82° 34' E. ; Bar. 29.38 ; Aneroid 29.35 ; Ther. 82 ; p. m. blowing hard with 

 high sea ; at 8, more moderate. Wind at S. S. W. set close-reefed fore 

 top-sail and reached her under the two top-sails. Midnight, Bar. 29.40 in. 

 clined to rise. 



Monday, May 5th. — A. m. wind inclined to moderate, but heavy sea 

 running ; at daylight, Barometer 29.45. Noon more moderate, made sail. 

 Lat. by Obs. 10° 11' ; Long, by Chr. 82° 20' ; Bar. 29.55 ; Aneroid 29.55 ; 

 Ther. 84. 



