660 BOTANICAL INFORMATION. 



I hear that Humboldt has at length published his Cosmos, 

 but I have not seen the book. 



You perceive that I use the English language for my letter j 

 the long period of bush-life has rendered my French very 

 rusty; but when I return from my next trip, I trust to 

 regain my fluency in that noble language. My Journal of the 

 journey to Port Essington is now in hand, and will be com- 

 pleted, I expect, in eight weeks more. 



Ludwig Leickhardt. 



(M. Gaetano Durando, the gentleman to whom the fore- 

 going letter is addressed, was an officer in the Sardinian army, 

 who quitted the service to devote himself to scientific pur- 

 suits, and has opened a ** Comptoir Botanique," for the sale 

 and exchange of specimens, at Paris, Rue Cuvier, where he 

 carries on a similar kind of business to that of Messrs. Hoch- 

 stetter and Steudel, and M. Hohenacker, in Germany, and 

 the late Mr. Hunnemann, in London). 



Specimens of British Rubi. 



The Rev. A. Bloxam, of Twycross, Atherstone, has ren- 

 dered great service to the student of British plants by the 

 publication of a few sets of the species of Rubus of this 

 country, chiefly of the more difficult and less known kinds, 

 amounting to about thirty species and varieties, at the cost 

 of £l. each set. They are named with the assistance of 

 Mr. C. C. Babington, and bear references to his " Synopsis 

 of the British Rubi." Great pains have been taken in the 

 collection and in the determination of the species, and the 

 specimens are very full and satisfactory, and in the most 

 beautiful state of preservation. So anxious is Mr. Bloxam to 



