380 Linnccau Society. — Geological Society. 



Nov. 23. Charles Bell, Esq. was admitted a Fellow of the 

 Society; — MM. Bouvard, Chevreul, and Dulong, were re- 

 spectively elected Foreign Members ; and the reading of Col. 

 Millar's paper was concluded. 



LINNiEAN SOCIETY. 



Nov. 7th. A. B. Lambert, Esq. V.P. in the Chair.— A Con- 

 tinuation of Dr. Hamilton's Commentary on the Hortus Ma- 

 labaricus was read. Jos. Woods, Esq. was elected a Mem- 

 ber of the Council in the stead of Sir Stamford Raffles, de- 

 ceased. 



Nov. 21. — Part of a paper was read, in titled Remarks on 

 the comparative anatomy of certain birds of Cuba, with a view 

 to their respective places in the System of Nature, or to their 

 relations with other animals. By W. S. MacLeay, F.L.S. &c. 



In the introductory part of this paper the author (who is at 

 present resident in the island of Cuba) insists on the great 

 importance of studying comparative anatomy and natural ar- 

 rangement in connection with each other, so that in the ex- 

 amination of particular organs the place held in nature by 

 the animal to which they belong may be also investigated. 

 The principles of arrangement laid down in Aristotle's Hi- 

 storic Animalium are then examined with reference to the 

 principle, introduced by Mr. MacLeay, of studying the varia- 

 tion of structure in different animals in preference to classing 

 them according to an arbitrary division of organs. 



GEOLOGICAL SOCIETY. 



A paper was read entitled, " Additional remarks on the 

 nature and character of the limestone and slate composing 

 principally the rocks and hills round Plymouth," by the Rev. 

 Richard Hennah, F.G.S. 



The author refers to his former paper on this subject, in 

 which he confined his field of observation to the narrow tract 

 between the Plym and theTamar; — he now extends its limits 

 to Mount Batten and Statten Heights, in a southerly direc- 

 tion. In this tract which forms the east side of Plymouth 

 Sound, as well as the western side from Mount Edgcombe 

 to Pudding Point, animal remains are imbedded in the slate. 

 On the eastern side the superior beds are occasionally of 

 an ochreous clay-slate containing thin veins of iron with 

 trochites and stems of encrinites : these are associated with 

 some peculiar fossil remains, which the author can assign to 

 no class ; they resemble the head of some plant or animal. 



The lower beds consist of compact white or light gray slate 

 inclosing the same animal remains which are found in the 



limestone 



