Narrative of the surveying voyages of his majesty's ships Adventure and Beagle (vol.1): between the years 1826 and 1836 : describing their examination of the southern shores of South America, and the Beagles's circumnavigation of the globe

METEOROLOGY. 585 From the preceding tables it will be seen that the mean tem- perature for the autumnal period (the months of February, March, and April) was 47°-2 ; the maximum and minimum were respec- tively 68° and 28°. For the brumal period, the three following months, the mean temperature was 34<°-5, and the maximum and minimum 49° 5 and 12°'6. During the former, or autumnal period, the barometer ranged between 30099 and 28768 inches, and for the latter it was between 305 and 28-274 inches. The range for the first being 1'331 inches, and for the last 2*226 inches.