I860.] General Monthly Meeting. 217 



gating the primary laws regulating the chemical action of light, and 

 the distribution of the chemical rays. It is, however, not capable of 

 universal application as a meteorological instrument, owing to its com- 

 plicated nature, and the great care requisite in its management. At 

 present we know of no easy, and at the same time correct, method of 

 estimating the chemical action of light. Much time and labour has 

 already been spent by the authors of the method described in endea- 

 vouring to prepare an instrument, which can be practically used for this 

 purpose in meteorological observations. Persevering in their efforts, 

 they hope ere long to overcome the numerous difficulties which beset 

 the subject, and to describe a method which shall answer the proposed 

 end. 



[H. E. r:] 



GENERAL MONTHLY MEETING, 



Monday, March 5, 1860. 



WiLWAM Pole, Esq. M.A. F.R.S. Tkeasurer and Vice-Phesident, 



in the Chair. 



Thomas Farmer Baily, Esq. 

 George Francis Brown, Esq. 

 Joseph Brown, Esq. 

 Stephen Busk, Esq. 

 Charles William Franks, Esq. 

 John Peter Gassiot, jun. Esq. 

 Thomas Greg, Esq. 



were duly elected Members of the Royal Institution. 



Rev. George Godwin Pow- 



nall Glossop, A.M. 

 Thomas John Kent, Esq. 

 Robert Morant, Esq. 

 John Charles Salt, Esq. and 

 Edward Woods, Esq. 



John Morgan, Esq. 



Arthur Giles Puller, Esq. and 



William Salmon, Esq. 



were admitted Members of the Royal Institution. 



The Secretary announced, That the following Arrangejpents had 

 been made for the Lectures after Easter : — 



Seven Lectures on the Structure, Habits, and Affinities of 

 Herbivouous Mammalia, with especial reference to certain 

 Species now living in the Zoological Society's Gardens, 

 Regent*s Park, by T. Spencer Cobbold, M.D. F.L.S. 



