vi 
'* On the Causes of Explosions in Boilers of Packet 
Engines, and Suggestions for their Improvement," 
by H. Hartop, Esq. 
On the Principle and Manufacture of the Patent Wire 
Ropes," by Mr. Lear. 
On the Geology of the Neighbourhood of Sheffield," by 
the Rev. W. Thorp. 
" On the Utility of Geology as applied to Mining, Agricul- 
ture, and the Arts," by C. Morton, Esq. 
The printed Proceedings of the Society, therefore, 
commence with the Meeting held at Leeds, December 
6th, 1839. 
Leeds, 17th April, 1849. 
