Upper Wind-Currents over the Bay of Bengal in March, and Malaysia in April and May

Abstract

IN my last letter to NATURE, vol. xxxiii. p. 460, on the subject of upper winds, I described the circulation of the Indian Ocean from the equator, where the north-west wind changes into the north-east monsoon, as far north as Ceylon, in the month of February. From there, about the beginning of March, I took a section of the weather, as nearly straight as practicable, from Colombo, through Calcutta, and 400 miles due north to Darjeeling.