OBSERVATIONS TAKEN IN INDIA. 
333 
maxima ranges of 21°'5 and 21° occur in March and January, and the minimum, 
9°‘4, was in August. The annual range was nearly double that of Bombay, namely, 
41°'9. The foot-note above alluded to has the following records : — 
1846. Maximum heat in May 105‘0 
1846. Minimum heat in January .... 55’0 
1847- Maximum heat in May 109'6 
1847. Minimum heat in February .... 50'0 
The range in these two years, therefore, being respectively 50° and 59°'6 Fahr. ; the 
thermometer rising higher and sinking lower than either at Madras, Bombay or Aden 
near the sea-level. 
Range of Temperature at Aden. 
Extending the comparison of thermometric range near the sea-level to Aden, in 
the latitude of Madras, but 35°’6 to the westward of Madras, it will be seen that, 
unlike Bombay or Calcutta, the greatest range is not in the cold months, nor in the 
months in which the maximum heat occurs, but in those months in which the mean 
temperature is comparatively moderate, viz. March, April and October; the smallest 
range however occurring, as at Calcutta and Bombay, in what are called the mon- 
soon months at those places, namely. May, June, July, August and September, while 
in those months at Madras the greatest range of the thermometer takes place. The 
greatest monthly range at Aden, 11°'2, occurs in October, and the least monthly 
range, 6°'0, is almost identical in the consecutive months of June, July, August and 
September. The annual range is 20°‘5. If the records of 1848 exhibit normal con 
ditions, then the climate of the dreaded Aden is more equable than that of places on 
the sea-level on the coasts of India. 
The annexed Table contains the elements of the preceding notices : — 
Range of Temperature at High Levels. 
With respect to the majority of the stations at different elevations above the sea, 
as hourly observations were not kept, and a maximum and minimum thermo- 
meter only used, at Mahabuleshwur and Dodabetta the hours of the occurrence of 
maxima and minima cannot be stated. 
