Vill PREFACE. 
with their very valuable Dissertations, on the distribution of the Insects and Mammalia of the Plains and 
Mountains of India, in which he has been much gratified by finding that their observations coincide so 
fully with the results which he obtained from investigating the Flora of the same regions. 
In the Botanical portion of the Work, the Author feels equally indebted to Dr. Robert Brown, 
‘¢ Botanicorum Princeps,” for placing in his hands the Herbarium, collected in Kunawur by Mr. Inglis, of 
Canton, and for the character of Incarvillea ; to Mr. Bentham, for those of the Silenee, Leguminose, 
and Boraginee ; also for describing, in his own works, the Labiate and Scrophularinee ; to Pro- 
fessor Nees Von Esenbeck, of Breslau, for the kindness with which he has arranged and described the 
~ new Genera and Species of Graminee and Cyperacee. The Author much regrets that want of space 
has compelled him to omit the characters of the former, which he has therefore made over to the Linnean 
Society. To Professor De Candolle, of Geneva, for examining and naming the Synantheree, and for 
the description of them published in his “ Prodromus ;” to Sir W. J. Hooker, for naming the Mosses. 
To Professor Don, also, the Author feels much obliged, for assistance in comparing his collection with 
the East-Indian and other Herbaria, deposited in the Museum of the Linnean Society, and for his account | 
of the Genus Ranunculus, of Gentianee, and the specific characters of the Smilacee and Tulipacee — 
figured. To Professor Lindley, for his Notes upon some of the Himalayan Umbellifere, as well as for 
examining the Orchidee of his Collection, and for the valuable advice he has received from him respecting 
every department of the Work. 
As the Work contains so much of Detail, combined with General Views, it would have been compara- 
- tively useless without easy means of reference. This has been supplied by the Analytical Table of Con- 
tents at the beginning, and the Alphabetical Indexes at the end of the Book : for all of which the Author 
is indebted to his Wife. In the former, the Plants figured by Drs. Roxburgh and Wallich have been 
referred to by the number of the Plate, and the number of species in the East-Indian Herbarium, 
_ according to the enumeration of Professor Von Martius, has likewise been added, as well as the number 
of genera and species in the Author’s Herbarium, according to the List which he published, in the 
Journal of the Asiatic Society, at Calcutta, in March 1832. 
The Author has to express his extreme regret, for the very long delay which has taken place in 
the appearance of the latter part of the Work. As this proceeded from his accepting the Professorship 
of Materia Medica and Therapeutics in King’s College, and thus finding it impossible to give the Work 
the exclusive degree of attention which it required, and had hitherto received, he hopes that the delay, 
will be excused, as he found it was the only way in which he could do justice to the task he had under- 
taken. This has, however, given him the satisfaction of seeing many of the suggestions which he has 
made, carried out in India. He has also to apologize for the Work not being completed in Ten 
Numbers; but if the Details, together with the General Views which have been entered into, be consi- 
dered, as well as the constant comparisons made between the Flora of the Mountains and of the Plains of 
India with that of other parts of the world, and also the application of the results to the probable 
means of improving the resources of India, it will probably be readily admitted, that it was not possible 
to calculate the exact Sentty of letter-press into which the information might be compressed. 
In conelitiions, the Author must express his conviction of the skill which rhs Gauci has displayed 
in the representations of the Plants figured, and in which he has been well seconded, first by Mr. Clarke, 
and latterly by Mr. Barclay in the Colouring. He considers it also but justice to the Publishers, Messrs. 
Allen and Co., to state, that they have in every instance acceded very liberally to the suggestions of the 
Author, for whatever was considered to be of advantage to the Work. 
