New Publications. . 397 



man himself has his pigmental apparatus, very circumscribed it is 

 true, but still quite distinct, in the nipple, particularly in the fe- 

 male. Having submitted the coloured portion of the skin of the 

 breast to his anatomical processes, M. Flourens found, first of all, 

 two epiderms, and then, between the second epidermis and the der- 

 mis, a pigmental membrane and a layer of pigmentum ; in a word, 

 the whole pigmental apparatus. One of the figures represents this. 

 Thus, he continues, we have a portion of the skin of the white man, 

 in which we find the whole structure of the skin of the coloured 

 races. Have we not in these facts a new proof, a direct proof, of the 

 common origin of the various human races, and of their original 

 unity ? To this proof, derived from the study of the skin, M. 

 Flourens intends adding another, deduced from the study of the 

 skeleton, and especially of the cranium. — TJ' Institute No. 504. 



1 1 . Irish and Alpine Hares said to he varieties of the same species, 

 — At the Cork Meeting of the British Association, Mr Thomson ex- 

 hibited specimens of the Alpine hare (Lepus variabilis)^ from the 

 Highlands of Scotland, and of the hare of Ireland (Lepus Hiberni- 

 cusj^ for the purpose of shewing that the species are identical. Of 

 this fact he, judging from external characters, satisfied himself last 

 autumn, when in the Highlands of Scotland, and subsequently proved 

 it by a comparison of the anatomical characters of the two supposed 

 species. 



NEW PUBLICATIONS RECEIVED. 



1 . Considerations Gcologiques sur le Mont Saleve, et sur les Ter- 

 rains des Environs do Geneve, par Alphonse Favre, Membre de la 

 Societe de Physique et d'Histoire Naturelle de Geneve, &c. &c. 4to, 

 with plates. Geneve, 1843. 



2. Statistical Account of Scotland, No. 44, containing the County 

 of Linlithgow complete, and part of the County of Perth. July 1843. 



3. Account of the Museum of Economic Geology. By T. Sop- 

 with, F.G.S., &c. 



4. On the Bebeeru Tree of British Guiana. By Douglas Macla- 

 gan, M.D., F.R.S.E. 4to. 1843. 



VOL. XXXV. NO. IiXX. OCTOBER 1843. 2 D 



