iv CONTENTS. 
Page 
Provisional Report of the Committee of the Medical Section of the 
British Association, appointed to investigate the Composition 
of Secretions, and the Organs producing them.............. 139 
Report from the Committee for inquiring into the Analysis of the 
Glands, &c., of the Human Body. By G. O. Rezs, M.D., F.G.S. 149 
Second Report of the London Sub-Committee of the British Asso- 
ciation Medical Section, on the Motions and Sounds of the Heart 155 
On the present state of our knowledge in regard to Dimorphous 
Bodies. By Professor Jounstron, F.R.S. .........-.-..-. 163 
Special Report on the Statistics of the Four Collectorates of Duk- 
hun, under the British Government. By Colonel Syxzs, F.R.S. 217 
On the relative Strength and other Mechanical Properties of Cast 
Iron obtained by Hot and Cold Blast. By Eaton Hopexinson 337 
Report on the Strength and other Properties of Iron obtained from 
the Hot and Cold Blast. By Writtram Farrparrn.......... 377 
Report of the Committee on Waves, appointed by the British As- 
sociation at Bristol in 1836, and consisting of Sir Joun Rosr- 
son, K.H., Secretary of the Royal Society of Edinburgh, and 
Joun Scorr Russett, Esq., M.A., F.R.S. Edinb., (Reporter) 417 
Note by Major Sasivez, being an Appendix to his Report on the 
Variations of the Magnetic Intensity observed at different Points 
Gf the Battine Ontiese caput sede pd... 90t LUN ee 497 
Report from Mr. Jamzs Yates, as one of the Committee for ma- 
king Experiments on the Growth of Plants under Glass, and 
without any free Communication with the outward Air, on the 
Plan ‘of Mr. N, 1: Ward; of London... .. 0... 4. . se -4 ae 
