199 



Monday, \^th March. 

 Dr HOPE, V. P. in the Chair. 



The following donations were presented : — 



Annals of Natural History, or Magazine of Zoology, Botany, and 

 Geology. Conducted by Sir William Jardine, Bart. ; P. J. 

 Selby, Esq. ; Sir W. J. Hooker ; and Richard Taylor, Esq. 

 (No. 1, new series). — By the Editors. 



Comptes Rendus Hebdomadaires des Seances de I'Academie des 

 Sciences. 1" Semestre 1838. Nos. 7, 8, 9 — By the Academy. 



Proceedings of the Geological Society of London. Nos. 52, 53. 



Transactions of the Geological Society of London. (Second Series.) 

 Vol. 5, Part I. — By the Society. 



Theory of Heat. By Philip Kelland, M. A., Fellow and Tutor of 

 Queen's College, Cambridge. — By tJie Author. 



Hortus Mauritianus, oa Enumeration des Plantes Exotiqnes et In- 

 digenes, qui crolssent a I'lle Maurice, disposees d'apres la 

 Methode Naturelle. Par W. Bojer — By Lord Glenelg, H. M. 

 Sec. of State for the Colonies. 



Journal of the Asiatic Society of Bengal, for June and August 

 1837.— ^y the Society. 



The Keith Medal awarded by the Council to Mr John 

 S. Russell for his Researches on Hydrodynamics, was 

 presented by the Vice-President. 



The following communications were read : — 



1. Practical Researches on Respiration. By Dr D. B. Reid. 



The object of the author was to lay before the Society the re- 

 sult of an investigation into the state of the air usually respired in 

 public buildings in this country and on the continent, to shew that 

 the amount of air usually allowed for respiration is far below what 

 is necessary to sustain the system in a healthy tone, and to give an 

 account of the various experiments and observations upon which 

 this opinion was founded. 



He entered also into an examination of the method that ought 

 to bo adopted in introducing and regulating the supply in different 

 apartments. In pointing out. some facts connected with the gene- 

 ral history of respiration, he endeavoured to shew the powerful 

 influence exerted by a full supply of light, and the important e£Pec| 



