[ vii ] 
the state of Health. By Henry Bence Jones, M.D., M.A. Cantah., F.R.S., 
Physician to St. George's Hospital 669 
XXXV. An Experimental Inquiry into the Strength of Wrought-Iron Plates and their 
Riveted Joints as applied to Ship-building and F essels exposed to severe strains. 
By William Fairbairn, Esq. Communicated by the Rev. Henry Moseley, 
F.R.S 677 
XXXVI. On the Mutual Relations of the Vital and Physical Forces. By William 
B. Carpenter, M.D.^ F.R.S. , F.G.S., Examiner in Physiology and Compara- 
tive Anatomy in the University of London 727 
XXXVII. On the Condition of certain Elements at the moment of Chemical Change. 
By Benjamin Collins Brodie, Esq., F.R.S 759 
XXXVIII. Supplementary Observations on the Diffusion of Liquids. By Thomas 
Graham, F.R.S., F.C.S. 805 
Index 837 
Presents 
Appendix. 
[ 1 ] 
PHILOSOPHICAL TRANSACTIONS, PART I. 1850. 
ERRATA. 
Page 245, line 13, after placed insert parallel to it. 
— 246, line 1,/or VI. read XV. 
246, line 1,/or one. A, read one, B. 
246, line ‘I, for B read A. 
246, line 17, after result insert in. 
246, line 19, /or fringe read force. 
252, line 13, erase 6=DE, and for — . „ ■■■ read , , . 
— V c- + x^ + V + 
253, line 16, /or being read between. 
254, line 19, /or XL read XII. 
254, line 21, /or e, c read c, c. 
257, line 13, for 19 read 21. 
257, line 25, for light read night. 
257, line 29, /or polarity read polarization. 
258, line 4, for ss read z. 
258, line 6, for V + read V v“ -\-2fZdz. 
In figs. 6 and 7, R R' should be a straight line. 
In fig. 9, P should be opposite to q. 
