METEOROLOGY. 



481 



Table sliowing the hourly change of wind, the course steered, the height oj 

 barometer, thermometer and sympiesometer, and temperature of water during 

 the cyclone. 



Thfi greatest height of barometer 30. 21 



The lowest stand of barometer 30. 1 



The lowest stand of sympiesometer 0.07 



SOME OBSERVATIO\S ON THE GREAT HlRRICA?fE OF OCTOBER 29, 1867, AT 

 TORTOLA, (OR PETER'S ISLAND,) ST. THOMAS, AND PART OF PORTO RICO. 



By George A. Latlmer. 



What is nsually called the great liuiiicane of 29th October, 1867, should, it 

 seems to me, rather be called a tornado, or a number of tornadoes, almost joined 

 and moving nearly together, for the following reasons : Humcanes extend far 

 and are wide ; this occun-ence on the 29th October was short in extent and 

 narrow. It appears to have begun at Tortola, (Peter's island,) at 9 a. m., with 

 wind at northeast, and lasted until 1.20 p. m., wind going all round the compass, 

 the hardest being from northwest. 



At St. Thomas it began at 10 a. m., with wind from northeast, and a heavy 

 rain ; at 11.15 a. m. calm until 12.15 p. m., when wind came furious from west, 

 and blew until 2 p. m. ; then a dead calm until 2.30 p. m., when the wind came 

 with fury from the east, accompanied by a heavy rain and a white atmosphere. 

 This, the second and most temfic part, lasted until 4.15 p. m., when it fell calm, 

 and the night following was clear, with a bright sky. While the wind was 

 blowing so hard from the east, the barometer fell 14 lines, and remained so for 

 30 minutes. 



At east end of Porto Rico, say Fajardo, Naguabo, and Humacao, it began at 

 11a m., with wind from northeast, shifting to southeast and south until 1.15 p. 

 ra., then calm until 2 p. m., when the wind came from northwest, and at 4 p. m. 

 it entirely ceased, and the evening and night following were calm. During the 

 violence of the wind, (but the hour is not given,) the sea rose in Fajardo and 

 Humacao about four feet, overflowing the beaches and all the store yards for a 

 very great distance. 



31 s67 



