76 



Prof. J. PrestwicL 



Locality. 



129. Kentish Town 



130. Allanheads 



Northumber- 



land (Gin Hill Shaft) 



131. Allanheads, Northumber- 



land (High Engine Shalt) 



132. Allanheads, Weardale, 



Slit Mine 



133. Allanheads, Breckonhill 



Shaft 



55 55 



134. Crawriggs, near Glasgow. 



135. Moscow 



136. Durham, South Hetton 

 Colliery 



131. Paris, La Cbapelle St. 

 Denis 



55 55 



138. Stowmarket . 



11 



Place of observation. 



Artesian well 



Lead mines 



Bore-hole 



Shaft and bore-hale. . 



Artesian well 



139. Przibram, Bohemia^ 



! 14 O. Seraing, Liege, Marie 

 Colliery 



141. 



Henri Guillaume 



55 55 

 55 55 



Adalbert silver mine 



Coal pit 



III 



Height of 

 surface 

 above 

 sea-level. 



Feet, 

 187 



1360 ? 



1174 



55 



200 



466 

 100 



185 



177? 



* Subsequent observations made in 1879 established a 

 1008 feet. 



f The thermometer could not be sunk below 857 feet, 

 the depth of 957 ft. 



temperature of 67 '06° at 

 but the shaft extends to 



