640 Memorandum relative to the seven C6sis of Nepal. [Dec. 



25 th Stage to the English Chouki, N. E. 7\ cos. 



Crossed the Siddhi stream and proceeded 1^ cos of slight ascent and 

 skirting the mountain bases to Thaplia. Thence half a cos of descent 

 to the small streamlet of Sechideu. Thence a quarter cos over low 

 hills to the Mechi river. The Mechi is the present boundary of Nepal 

 and Sikim. It is a small stream which rises in the Singalelah ridge, a 

 spur of Karphok. Crossed it and ascended the hill of Nagri, by a 

 very bad road and severe ascent of 1^ cos to the top. Thence a severe 

 descent of one cos to the smaller Rangbhang Khola, a streamlet merely \ 

 Thence along the glen to the great Rangbhang, distant one cos. Thence 

 a steep ascent of one cos to Nagri Kot, an old fort in ruins. Thence 

 a painful descent of ^ cos to the Balason river. It is a moderate sized 

 stream, larger than the Mechi. Thence half a cos of rather uneven 

 travelling to the halting place. 



26th Stage to Barjeling, North, 4 cos. 



A severe ascent of one cos, and then an easy half cos along a ridge, 

 brought us to the Company's high road, along which we travelled for 1\ 

 cos to Jellapahar and Herbert hill at Darjeling. 



Total cos 109. 

 At 2^ miles per cos=miles 254. 



Note. — The Nepalese standard cos is equal to 2^ English miles, and the travellers 

 had this standard to refer to along a great part of their way, as being coincident gener- 

 ally with the measured military road several times adverted to on the route. Hence 

 their distances from stage to stage may be perfectly relied on, though in the details 

 of each stage the same accuracy cannot be expected. 



Memorandum relative to the seven Costs of Nepal, by B. H. 

 Hodgson, Esq. 



The enumeration of the seven Cosis by the Itinerists is doubtless the 

 accredited one, and what I have myself often heard at Kathmandii. 

 Nevertheless names are not always applied in strict correspondence with 

 things in geography. Witness the neglected Jahnavi, the true and 

 transnivean source of the Ganges ! Now, if we are to estimate the 

 seven chief feeders of the great Cdsi according to the length of their 



