60 



Prof. J. Prestwich. 



Locality. 



II 



Place of observation. 



Ill 



Height of 

 surface 

 above 

 sea-level. 



21. Cornwall, Huel Damsel 



22. Neath, South Wales* . 



23. Carmeaux (Tarn) 



33 33 



» v 



33 33 



24. Littry, Calvados 



25. Decise, Nievre 



26. Cornwall, Huel' Alfred . ! 

 21. „ Dolcoath 



28. „ Huel Trumpet 



29. Pregny, near Geneva . . . 



Feet. 



30. Sunderland 



31. Tours 



32. Lille (St. Venant) . 



33. Aire, Pas de Calais. 



34. Neu Salzwerk(a). 



phalia. 

 Neu Salzwerk 



West- 



35. Sheerness (c) 



36. Paris, Ecole Militaire 

 31. Paris, Grrenelle Well 



Copper mine 



33 33 



3J 33 



3> 33 



33 33 



33 33 



Coal pit 



jj 



33 



33 • • • • 



33 



» 



33 



33 



Copper mine 



Copper and tin mine . . . 

 Tin mine 



Artesian boring {not 

 overflowing) 



Coal pit 



Artesian well . . . 

 jj s> • • • 

 » »»'*■• 



Artesian salt-well 



J3 33 



33 33 



Artesian well . . . 



JoO ? 

 820 



197 



492 



280 



308 feet 

 above Lake 

 of Greneva 



87 

 180 



79 



50? 

 270 



10 

 213 



* The thermometer was here buried for some hours 1 to 2 feot under the ground, 

 f Temp, of Rouen is 50 '7°. 



X Temp, of Greneva, 48 "4° ; height above sea, 1335 feet. 

 § French feet. 



|| Observation made in hole filled with water. 



% The temperature of water at outflow in the first three observations did not 



