During the passage out, some days were spent in Egypt, at Aden,
Ceylon, and Madras. I have not thought it necessary to give here the
observations made in those well-known countries; they are detailed in
a series of letters published in the "London Journal of Botany," as
written for my private friends. Arriving at Calcutta in January, I
passed the remainder of the cold season in making myself acquainted
with the vegetation of the plains and hills of Western Bengal, south
of the Ganges, by a journey across the mountains of Birbhoom and
Behar to the Soane valley, and thence over the Vindhya range to the
Ganges, at Mirzapore, whence I descended that stream to Bhaugulpore;
and leaving my boat, struck north to the Sikkim Himalaya. This
excursion is detailed in the "London Journal of Botany," and the
Asiatic Society of Bengal honoured me by printing the meteorological
observations made during its progress.

During the two years' residence in Sikkim which succeeded, I was laid
under obligations of no ordinary nature to Brian H. Hodgson, Esq.,
B.C.S., for many years Resident at the Nepal Court; whose guest I
became for several months. Mr. Hodgson's high position as a man of
science requires no mention here; but the difficulties he overcame,
and the sacrifices he made, in attaining that position, are known to
few. He entered the wilds of Nepal when very young, and in
indifferent health; and finding time to spare, cast about for the
best method of employing it: he had no one to recommend or direct a
pursuit, no example to follow, no rival to equal or surpass; he had
never been acquainted with a scientific man, and knew nothing of
science except the name. The natural history of men and animals, in
its most comprehensive sense, attracted his attention; he sent to
Europe for books, and commenced the study of ethnology and zoology.
His labours have now extended over upwards of twenty-five years'