In one point respecting these maps, I consider myself bound to do justice to the researches of Colonel Crawford. From a treatise on the sources of the Ganges, given by H. T. Colebrooke, Esq. in the 11th volume of the Asiatick Researches, page 429, etc. it might be possibly inferred, although this, perhaps, was not intended to be expressed, that Colonel Colebrooke and his kinsman were induced to reject the authority of D’Anville respecting the sources of the Ganges, merely from examining the authorities, upon which the course of the Ganges above Haridwar had been laid down in the geographical charts then in use. Now, the fact is, that Colonel Colebrooke had other grounds for rejecting the authority of D’Anville, and especially one of the above-mentioned maps, which had been officially communicated to him by Colonel Crawford. In this map the sources of the Ganges are laid down from the reports of pilgrims; nor has the survey, carried on by the suggestion of Colonel Colebrooke, added any thing material, so far as relates to the general outlines of these sources. By this observation I by no means intend to depreciate the labours of Mr Webb, by whom the survey was conducted; nor the judgment and love of science evinced in the recommendation of Colonel Colebrooke to employ him. So long as the matter rested entirely on the report of pilgrims, doubts would exist; and the survey has not only entirely removed these, but has given us many details of a country previously unknown. Concerning the country between Nepal Proper and the river Kali, I follow chiefly the authority of the following persons: 1_st_, a Brahman, named Sadhu Ram Upadhyaya, whose family was in hereditary possession of the office of priest (Purohit) for the Raja of Palpa, one of the principal chiefs in this district; 2_d_ and 3_d_, Prati Nidhi Tiwari, and Kanak Nidhi Tiwari, two brothers of the sacred order, the former very learned, and the latter a man of business. Their family had been long Mantris, or advisers of the same chiefs, but came originally from Kumau; 4_th_, Samar Bahadur, uncle to the Raja of Palpa, now in exile. Two maps of these parts, now in the Company’s library, were prepared by Sadhu Ram and Kanak Nidhi, with the assistance of Kamal Lochan, one of the natives attached to the survey of Bengal, on which I was engaged. Although they differ in some points, they agree in so many more, especially in the eastern parts, that considerable reliance may be placed on their giving some tolerable idea of the country.