iv CONTENTS. 



Page 



Provisional Report on the Theory of Determinants. By J. J. Syl- 

 vester, F.R.S 66 



Report on the Gases evolved in Steeping Flax, and on the Composition 

 and CTlconomy of the Flax Plant. By Professor Hodges, M.D 67 



Thirteenth Report of a Committee, consisting of H. E. Strickland, 

 Esq., Professor Daubeny, Professor Henslow, and Professor 

 LiNDLEY, appointed to continue their Experiments on the Growth 

 and Vitality of Seeds 67 



On the Chemical Action of the Solar Radiations. By Robert Hunt, 

 Esq , 68 



Observations on the Character and Measurements of Degradation of 

 the Yorkshire Coast. By John P. Bell, M.D., Hull 81 



First Report of the Committee, consisting of the Earl of Rosse, the 

 Rev. Dr. Robinson, and Professor Phillips, appointed by the 

 General Committee at Belfast, to draw up a Report on the Physical 

 Character of the Moon's Surface, as compared with that of the Earth... 81? 



Provisional Report on Earthquake Wave-Transits ; and on Seismome- 

 trical Instruments. By R. Mallet, C.E=, M.R.I.A. (In a Letter 

 to the Assistant-General Secretary.) 86 



On the Mechanical Properties of Metals as derived from repeated Melt- 

 ings, exhibiting the maximum point of strength and the causes of de- 

 terioration. By William Fairbairn, F.R.S. &c 87 



Third Report on the Facts of Earthquake Phaenomena. Catalogue of 

 recorded Earthquakes from 1606 b.c. to a.d. 1850 (continued). By 

 Robert Mallet, C.E., M.R.I.A 117 



