: i 283 
BOTANICAL INFORMATION. —_ 
Mr. Ptant’s Botanical Journey to South America, Sc. 
Mr. Plant, an active and intelligent naturalist, is about to travel 
for some years and employ himself as a collector in Botany and other 
departments of Natural History. He proceeds first to Rio Grande in 
South Brazil, and proposes to spend some time in Paraguay and other 
countries in the interior, then to cross the Pampas from Buenos 
Ayres to Mendoza, explore the eastern side of the Andes, and proceed 
thence into Chili, eventually probably to the Sandwich or other 
islands of the Pacific. 
Mr. Samuel Stevens, 24, Bloomsbury-street, London, is prepared to 
give further information respecting this interesting journey, and to 
receive the names of any gentlemen who desire to subscribe to col- 
lections. 
Death of Professor Ledebour. 
Again we have to announce the death of a distinguished and energetic 
botanist, Dr. Ledebour, formerly Professor of Botany in the Univer- 
sity of Dorpat, eminent as a traveller, and the author of "Travels in the 
Altai, ‘ Flora Altaica,’ and the ‘ Icones Plantarum novarum vel imper- 
fecte cognitarum Floram Rossicam, imprimis Altaicam, illustrantes, in 
5 vols. folio, with 500 exquisitely executed and coloured plates. His 
most recent publication i is the ‘ Flora Rossica,’ still incomplete. This 
author died at Munich on the 4th of July. Our last faseiculus is X. of 
the * Flora Rossica, extending to the end of Conifere (following De Can- 
dolle’s arrangement). The manuscript, however, is known to be very _ 
nearly complete, and it is said (Regensburg ‘ Flora’) the ** Russian 
subvention will be continued to secure the completion of the work." — — 
NOTICES OF BOOKS. 
Bulletin physico-mathématique de © Académie Impériale des Sciences de 
Saint Pétersbourg. - 
'The nos. 10, 11, and 12 of vol. ix. of this work, for May 1851, give 
the following information under the head of “ Botanique :"— 
