224 SCIENTIFIC NEWS. 



James Parkinson, Esq. 



Smithson Tennant, Esq. F. R. S. 



Henry Wnrburton, Esq. F. R. S. 



William Hyde Wollaston, M. D. Sec. R. S. 



Keeper of the Museum and Draughtsman. 

 Mr. Thomas Webster 



February }gtk. 

 The president in the chair. 



John Bostock, M. D. and Thomas Stewart Trail, M. D. of 

 Liverpool, were elected members of the society. 



A paper by John Taylor, Esq. M. a S on the economy of 

 the mines of Cornwall and Devon, was read. 

 The subjects ireated on in this paper are, 

 I. The nature of the agreements between the owner of the 

 soil and the mine-adventurers. 



2. The arrangements between the partners, or the mine-ad- 

 venturers themselves, and the system of controul and manage- 

 ment, appointed by them. 



3. The mode of employing and paying the miners and 

 workmen in use among the agents of the principal concerns. 



4. The purchase of materials for carrying on the under- 

 taking. 



5. The sale of the ores from the mine-adventurers to the 

 smelting companies. 



1. The regulations of the stannary laws refer only to mines 

 of tin ; hence the search after, and working lodes of copp er 

 lead, and other metals, i* left open to sach conditions as the 

 adventurers and the lord of the soil can mutually agree upon. 

 In general, the lord grants a lease for twenty-one years, deter- 

 minable, however, at any time on his part if the mine should 

 not be effectually worked. In return he requires a certain pro- 

 portion, varying according to ciicumstances from an eighth to 

 a thirty-second part of the ore, to be delivered tc him ip a mer- 

 chantable state, or its value in money. He stipulates for a 

 power of inspecting the works at all times, and binds the ad- 

 venturers to maintain and leave, at any determination of the 

 grant, all the shafts, adits, and levels, perfect and in good con- 

 dition as to timbering. 



2. The adventurers divide the whole concern into sixty-four 



shares, 



