XV1 
range ;* and in the westernmost region the Jodes show a certain de- 
gree of divergence.t But notwithstanding there is scarcely a point 
of the compass towards which some lode or other does not trend ;+ 
and that—whilst the Jodes in many tracts have, amongst them- 
selves, an approximate coincidence—their mean directions in the 
several districts are materially different ;§ the average bearing 
throughout the County is about 5° N. of E—s. of w.,§ a range 
not materially different from that of the granite which appears at 
intervals between Dartmoor and the Land’s-end; and, perhaps, 
not altogether unlike the course of a line drawn through the 
centre of Cornwall.|| The lodes—presenting as many flexures 
in their downward as in their onward course{l—vary in dip from 
even less than 45° to 90°, and, perhaps, average about 70° from 
the horizon.** Instances of /odes dipping oppositely in different 
parts of their range—though not unknown—are infrequent.}{ In. 
Bridgewater Treatise, ii., p. 108. Burr. Practical Geology, p. 286. Henwood, 
Cornwall Geol: Trans: v., pp. 174, 250-254; viii., p. 674, 704. Hopkins, 
(H.), Geology and Terrestrial Magnetism, p. 47. Whitney, Metallic Wealth 
of the United States, p. 206. Thomas, (C.), Geology of Cornwall and Devon, 
p-5 Moissenet, Annales des Mines, 6me Série, ii., pp. 161-171. Webb 
and Geach, Caradon and Liskeard District, p.5. Von Cotta, Ore Deposits, 
p. 407. 
* Carne, Cornwall Geol: Trans: ii., p. 85. Fox, Reports of the Royal 
Cornwall Polytechnic Society, iv., p. 83. Henwood, Cornwall Geol: Trans: 
Wy 195 eos 
+ Henwood, Cornwall Geol: Trans: v., p. 251, Table ciii. 
+ Ibid, v., Table ciii. 
§ The mean direction of the lodes in the different districts of Cornwall, is 
SAIN eT Stimpetarelereteters etetere stedsteveb ei 35° 8. of H.—N. of W. 
SalMGeviesiearaes cielsie!s sretevers eiteren eres 8° §. of H.—N. of W. 
Marazion ...... cisusteicious sie iatevestes 1° N. of E.—S. of W. 
Giwil C B YSN OCC lace reifols sexe seisieicre sierevere teks 2° 8. of E.—N. of W. 
Helston ...... cobgcaob oO dCONOGOE 16° N. of H.—S. of W. | 
Charm Nore, C4E566000006000005 -.-. 20° N. of E.—S. of W. 
Rear tla se saercireieicievereeteiele albnereotis 22° N. of E.—S. of W. 
SAlMiMACIN OS Merceevenciototercrelel telerik: 22° N. of E.—S. of W. 
SamntpArs tellers cjersrepelereverereereroteroeve 13° N. of E.—S. of W. 
Caradonenerier SABI Bivlecedsiameveesete 18° N. of E.—S of W. 
MavaStock Cowes staveterervercisie sere ote 9° N. of E.—S. of W. 
Ibid, v., p. 250; viii., p. 674. 
|| Boase, Ibid, iv., p. 362. Dela Beche, Report, p. 309. Henwood, 
Cornwall Geol: Trans: v., p. 251. 
q Borlase, Natural History, p, 152. Pryce, Mineral: Cornub: p. 80. 
Phillips, (W.), Geol: Trans: ii., p. 115. Thomas, (R.), Report, p. 19. Carne, 
Cornwall Geol: Trans: ii., pp. 89, 92, 97, 106, 8322. Fox, Report of the Royal 
Cornwall Polytechnic Society, iv., p. 85. Henwood, Cornwall Geol: Trans: v., 
pp. 245-249; viii., pp. 674, 704. 
«* Ibid, p. 247. 
++ Thomas, (R.), Report, pp. 33, 44,54. Carne, Cornwall Geol: Trans: 
li., p. 97, 98. Henwood, Ibid, v., p. 247. 
