MAP MAKING 327 
think it better to retain it at present, and I will do my best 
to get one ready for February post, but really these are works 
of no ordinary labour, and I do dishke doing things in an 
inferior manner to what I can do them. 
By the 30th, however, 
I had just finished for you an excellent large map of my 
wanderings, but have thought it proper to give it to Genl. 
Young, who was all abroad as to how to dispose of the 
troops now marching into Sikkim. 
July 18. 
My map of Sikkim has been copied at the Surveyor 
General's office. Thuillier is greatly pleased with it. I have 
given it to the Govt, as they wished it, but Thuillier sends 
you overland either the original or a facsimile. Lord D. sent 
for it and expressed himself most kindly and flatteringly ; 
it is the first and last of my performances in that Hne. As 
a topographical map I hope it will do me credit, it is as 
full as I could make it with accuracy, and I have the materials 
for working the elevations of 5 or 600 places over the surface, 
as also full ones for making it geological, botanical, and 
meteorological from the plains to 19,000 feet of elevation 
in one direction, and to 16,000 along the Northern, N.E. and 
N.W. frontiers. 
After all this was not the last of the Indian map-making ; 
in November he made a map of the Khasia Hills, which he 
visited during the autumn, and this 
I finished this morning (Nov. 26, 1850) ; a very poor affair 
it looks. Thuilher will send it you with a copy, after he 
has copied it for insertion into the General Atlas of India. 
That finishes my survey worh, I am glad to say. The work 
has cost me great time and labour, but I do not admit that 
it was so much time taken from Natural History, for I have 
had plenty of that too, as much as I could well put up 
with. 
His experiences, shown graphically in the map, revolution- 
ised current theories about the geography of the Himalayas, 
in which the veteran Humboldt was so deeply interested. 
