156 REPORT ON THE ROYAL GARDENS AT KEW. 
to the tropic, and occupied five years; they include 4856 species, and 
perhaps 12,000 ticketed specimens. In South America, in 1825, he 
entered the Brazils at Rio de Janeiro, and thence travelling northward, 
he traversed the entite length of that immense kingdom, by a route 
previously followed by no European, and descending the Tocantins 
river to the Amazons, arrived at Pará in 1830. His Brazilian collec- 
tions amount to 11,765 distinct numbers, and nearly 52,000 speci- 
mens. Dr. Burchell died in 1863, and left these treasures to his 
sister; she offered them to her brother's friend, the late Director, who, 
with your permission, aecepted them for the Herbarium of the Royal 
Gardens. These two collections (Lindley's and Burchell’s) would 
certainly have fetched a very large sum if they had gone into the 
market. 
A very important Herbarium of Sandwich Island plants (560 species) 
xis been presented by Dr. Hillebrand, of those islands. 
Dr. Mueller continues to transmit his invaluable Australian Herba- 
rium and notes for the purpose of assisting Mr. Bentham in the Aus- 
tralian Flora; together with specimens of all the recent discoveries 
made on that continent for our own Herbarium. . 
M. Naudin has sent a beautiful set of the Cucurhitacee, cultivated 
by him in the Paris garden, etc. 
The plants of Lieut.-Col. Pelly's Arabian journey have been pre- 
sented by that officer, and determined at Kew. 
The principal works published in connection with the Herbarium 
and Library have been :— 
The second part of the * Genera Plantarum,’ by Mr. Bentham and 
Dr. Hooker. The third volume of Mr. Bentham’s ‘ Flora Australiensis.’ 
The third volume of Drs, Harvey and Sonder's * Flora Capensis’ (pub- 
lished), and a very valuable and laborious essay on the African Legu- 
minose, by Mr. Bentham, published by the Linnean Society. The 
Flora of Tropical Africa is being prepared by Professor Oliver. 
botanists who have spent a considerable time at Kew for the 
purpose of studying in the Library and Herbarium, have been :—Prof. 
Mettenius, of oe publishing in Ferns; Prof. Baillon, of Paris ; 
Dr. Triana, w Granada; Dr. Seemann, F.L.S., in publishing his 
 * Flora — Dr. Thomson, F.R.S., studying Indian plants; Dr. 
Welwitsch, F. b S., arranging, ete., his vast tropical African Herba- 
rium; Prof. Reichenbach, of Hamburg, studying Lindley’s and other 
