from less frequent periods of record. 
324 
LIEUT.-COLONEL SYKES’S DISCUSSION OF METEOROLOGICAL 
CD 
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Means of two-hourly observations. The mean temperature at Madras, in 1848, was 83°T5, and the curve the same as that of the preceding years. 
Sattarah is in Lat. 17° 40'. Long. 74° 2'. Mercara is sixty-five miles E. of Cannanore. Uttray Mullay, twenty-two miles N.E. by E. from Trevandrum. 
The mean temperature at Mahabuleshwur, fi'om 1829 to 1843, was deduced from the mean of a daily maximum and minimum thermometer in the shade. 
