RAINS. 123 



such quantity may be estimated at 66 inches 28 hundredths 

 per annum. 



In the first edition of this book, I had given such quantity 

 as 70*30 inches. It was compiled from observations published 

 by Captain Tulloch in his " Statistical Report '' for the years 

 1825, 1826, 1827; from those of Dr. J. Davy, in his work on 

 the West Indies, from the years 1847 to 1852 inclusive, and 

 taken at the St. James's Barracks ; also from observations made 

 at the Royal Gaol, from 1850 to 1854 inclusive. 



The months which exhibit a minimum of rain are April, 

 March, and February ; and those wherein the maximum quantity 

 falls are August, July, and September. It would appear, from six 

 years' observation by Ramon de la Sagra, that the mean annual 

 quantity of rain which falls at Havanna is 109 inches; it is 

 72 inches on the north coast of Venezuela (Codazzi) ; from 

 118 to 128 in Hindustan, near the coast (Humboldt) ; 90*75 

 inches in Ceylon (western coast). In Paris it was found by 

 Arago to be 20 inches ; in London, by Howard, 25 inches ; 

 in Geneva, 30*50 inches (Humboldt). 



By taking separately the first five months of the year 

 allotted to the dry season, and the seven last months which 

 comprise the wet, we have the following results : 1*98 inch 

 per month for the first five months; 7*78 inches during the last 

 seven months. We may, therefore, conclude that June, July, 

 August, September, October, November, and December are very 

 humid, and the climate generally damp. The greatest quantity 

 of rain which fell during any month, pending the period of 

 fifteen years, was 15*18 inches, viz., in August, 1876; in 

 the same month of 1851, the quantity reached 16*81 inches. 

 No rain, by the rain-gauge, in January, 1862, and May, 1873 ; 

 only 4 hundredths in April, 1864; and 7 hundredths in Feb- 

 ruary, 1872. 



