312 Proceedijigi of Philosophical Societies. [Aprvl, 



The bones and skeletons of quadrupeds are found buried at 

 various depths in the marls of Forfarshire as they occur in the 

 lower freshwater formation of Paris. 



Of the four desiderata mentioned by Messrs. Cuvier and 

 Brongniart (Ess. on the Env. of Paris, p. 56), as being requisite 

 to complete the analogy between the deposits of lakes now 

 existing, and those of a former world ; three are supplied by the 

 lakes in Forfarshire, viz. 1. A compact limestone ; 2. Vegetables 

 converted into the substance of their calcareous matrix; 3. Large 

 beds of yellowish white calcareous marl. 



The rock marl of Forfarshire closely resembles the Travertino 

 of Italy, part of which is a recent formation, but part has been 

 proved by M. Brongniart to be of a date probably as ancient as 

 the upper freshwater strata at Paris. 



The only difference remaining between the ancient and the 

 modern freshwater formations is, 1. The absence in the latter of 

 silica, which is only known as a modern deposit from water con- 

 nected with volcanic agency; and 2. The small scale on which 

 the recent accumulations proceed. 



If these differences are ascribable to a higher temperature 

 prevailing where the ancient freshwater rocks were formed, they 

 may perhaps disappear when the hitherto unexplored tropical 

 regions of the globe are fully investigated. 



MEDICAL SOCIETY OF LONDON. 



The fifty-second Anniversary Meeting of this Society was 

 held on Tuesday, March 8, at the London Coffee-house, Ludgale 

 Hill : W. Shearman, MD. President in the Chair. 



The Officers and Council for the year ensuing, are : 



P?es«/e«^— H.Clutterbuck, MD. 



Vice-Presidents.— E.. J. Cholmely, MD.; J. Johnson, MD. ; 

 Sir Astley P. Cooper, Bart. FRS. ; and W. Kingdom, Esq. 



Treasurer. — J. Andree, Esq. 



Librarian. — D. Uwins, MD. 



Secretaries.— i:. J. Pettigrew, Esq. FAS. FLS. ; and T. Calla- 

 way, Esq. 



Forei'^n Secretart/. — L. Stewart, MD. 



C'o«Hn7.— T. Walshman, MD.; W. Shearman, MD. ; G. Dar- 

 ling, MD. ; T. Cox, MD.; J. Barne, MD.; J. Russell, MD.; 

 J. B. James, MD. FLS.; E. Morton, MD. ; G. Drysdale, 

 E. Sutleffe, B. Brown, J. Dunlap, W. Lake, K. Johnson, S. Ash- 

 well, E. A. Lloyd, J. Handey, E. Leese, H. Edwards, W. D. 

 Cordell, J. Amesbury, W. Burrows, S. Wray, H. B. C. Hillier, 

 M. Gossell, T. W. Chevalier, G. Langstaff, J. C. Taunton> 

 H. Hensleigh, J. M. Mugglestone, J. S. Smith, R. W. Bamp- 

 tield, R. Brien, R. Blick, M. Ware, Esquires. 



To deliver the Oration in March, 1826. — J. Haslam, MD. 



Registrar. — J, Field, Esq, 



