between CALCUTTA and AGRA, will be found in the AGRA table, and not in that of Calcutta.

With respect to the distances themselves, it must not be expected that they are in general critically exact; for although the positions of eight out of the twelve primary places, are determined with some degree of precision; and three out of the four remaining ones, pretty nearly; yet the intermediate roads have, in few instances (those between Bengal and Delhi excepted) been measured. But since the publication of the first tables, the measured routes of Col. Pearse from Calcutta to Madras, Mr. Ewart's between Calcutta and Nagpour; and Mr. Pringle's tables of routes in the Carnatic; have come to hand: and the present tables will accordingly be found much improved. The deficiencies could only be supplied by the computed distances; which, however, appear to come as near the truth in India, as in any country whatever : or, where these have failed, by allowing such a degree of winding, as is found by experience to take place in a similar kind of country. The cofs is always reckoned at one British mile and nine-tenths, in road measure. For other particulars respecting the length of the cofs, and the windings of roads, the reader is desired to turn to the first pages of this Memoir.

The length of a day's journey in Hindoostan (as has been observed before) is from 11 to 12 cofses, or about 22 miles, for an ordinary traveller. But that of a courier, or profefsed mefsenger, may be reckoned at go or 53; and on occasions of emergency, they can travel even more; and that for a continuance of 15 or 20 days.

A regular post is established throughout the parts of Hindoostan subject to the East-India Company, and also from Calcutta to Madras. The postmen always travel on foot. Their stages are commonly from seven to eight miles; and their rate of travelling within our own districts, about 70 miles in the 24 hours