1822.] occur rhig in the Environs of Bristol. 381 



I cannot close this list without mentioning an undesci'ibed 

 helix found by me in 1817 on the boards that line a pine (bro- 

 inelia)bed. 



Helix Goodallii {nobis). 



Spec. Char. A subperforated, turretted, pellucid, pale 

 corneous, or almost white shell, having from six to seven volu- 

 tions, and an ovate aperture. 



Observation. — The inhabitant a Umax of a green-yellowish 

 colour, which is transmitted through the shell, and gives it that 

 tinge when found with the animal in it. On account of the pine 

 bed being frequently disturbed, full grown specimens are rare, 

 and I possess but few that show seven volutions, the major part 

 having from four to five. When full grown, one-third of an inch, 

 or rather more, long. I have sent specimens of it (as a new 

 buhmus to which modern genus it belongs) to the Linnean 

 Society, Mr. Sowerby, Dr. Goodall, and several other gentlemen. 

 I have named it after Dr. Goodall, the Provost of Eaton, so well 

 known as a conchologist, and who had the goodness to commu- 

 nicate it to Baron de Ferrusac, at Paris, now engaged in pub- 

 lishing a splendid work on Land and Freshwater MoUuscse. 



Article X. 



Remarks on Mr. Moyle's " Observations on the Temperature of 

 Mines in Cornwall." By R. W. Fox, Esq. 



(To the Editor of the Annals of Philosophy .) 



ESTEEMED FRIEND, April ^Oy 1822. 



In 1819 and the two following years, I made some communi- 

 cations to the Cornwall Geological Society on the temperature 

 of several mines in this county, to which subject my attention 

 had been directed in 1815; and some of the results noticed 

 therein had been obtained in that year. 



A friend of mine, who had assisted me in my inquiries, being 

 about to visit France, I communicated to him the substance of 

 my papers with a view of obtaining information respecting the 

 temperature of the mines in that country ; and through this 

 channel, some of the facts mentioned in them were introduced 

 into the Annales de Chimie et de Physique. 



I observe that the last number of the Annals of Philosophy 

 contains a letter from M. P. Moyle, alleging, " that either I 

 have drawn false conclusions on this subject, or that the temper- 

 atures have not been taken in a proper manner." 



As the second volume of the Transactions of the Cornwall 

 Geological Society, in which, I understand, my communications 



