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 ADVANCE ALONG THE SEA-COAST, 1818.

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and April ; in May it appeared at Vizagapatara, and in July at Masulipatam. It was generated among tlie northern villages of Nellore early in August, but did not reacli the southern part of the district, a distance of 180 niile», until the 5th of October. Mr. Scott remarks that its progress southward from Ganjam to NeUore, against the south-west monsoons, was much slower than from the latter district to the -remaining southern portion of the coast, after, the wind had set in from the IST. E.*

On the 5th of October cases of cholera were met with in the town of Madras ; " the disease appeared to be commonly more prevalent in all those situations where considerable humidity existed, combined with putrid effluvia, and where the inhabitants, owing to bad clothing and lodging, were consequently much exposed to the influence of the weather. This may probably account for the greater sickness and mortahty at some stations than others, and where the nature of the soil, the alternatioil's of temperature, the degree of moisture and purity of the air, may, I apprehend, be considered as the principal sources from which the increased activity of the primary and essential cause of the epidemic, or greater morbid susceptibility of the human body, may be supposed to originate." The disease was noticed among the inhabitants of N^agore about the 10th of November, and at Madura on the 30th of th£ month.

I have already noticed the fact of cholera having appeared on the western coast at Surat, Bombay, and throughout the Concan during the latter part of August; it was at its height in September and October, and at the same time Cahcut, Quilon, and


 * Scott's ' Report on Cholera,' p. xlvi. Madras, 1824.