DR. HOOKER's MISSION TO INDIA. 301 
only a single speeimen in Delessert's herbarium, marked Java, La Haye. 
At all events it approaches Ch. polyphylla, seeming, however, to 
have a more simple covering of the leaves, in the manner of Ch. 
fragilis. Tt is tender and pellucid, imperceptibly incrustated; the 
first uncovered joint of the leaves is not quite hidden by the short 
stipule ; the foliola are shorter than the seed, which is somewhat less 
than in Ch. Ceylonica, having a short coronula and only 11-12 strize 
on the side. 
East Indian species unknown to me :— 
Ch. polyclados Don. (ubinam descripta ?) 
Ch. spiralis herb. Hamilt. (Wallich Cat. 5188). 
Ch. hispida herb. Madr. (Wallich Cat. 8189). 
Freiburg, Grand Duchy of Baden, March, 1849. 
Extracts from the Private Letters of Dr. J. D. HOOKER, written during 
a Botanical Mission to INDIA. 
(Continued from p. 282.) 
CALCUTTA To DARJEELING IN SikK1M-HIMALAYA. 
From Bhaugulpore I despatched my Soane valley, Birbhoom, and 
Behar, &c. collections to Calcutta, for transmission, thro r.Falconer's 
kindness, to England. The packing of them, with frequent visits to 
the Horticultural and Mr. Pontet's gardens, occupied all my tim 
— with Dr. Grant, ius nd five days at this most fear ats 
t the residents, from whom I received 
the usual Indian hospitality. 
I took, as it were, a new departure, on Saturday, April the 8th, my 
Dawk being laid on that day from Caragola Ghat, about thirty miles 
down the river, for the foot of the Himalaya range and Darjeeling. 
Dr. Grant accompanied me to Colgong, half way down the river, on my 
course, where we proposed lunching, before I should proceed. Having 
dismissed the huge boat which I had hired at Mirzapore, 1 embarked 
in a much swifter one, kindly lent me by the magistrate of Bhaugul- 
pore, in which we had no sooner set forth than a heavy easterly gale 
