Phillips, J. A., Esq., on the proportion of silver in the lead ore) qq

lia,]^^-



of Australia,
i n »i gold „ , 99.
-, ,f production of „ in California, Table

XXU.
•, „ „ „ in Nova Scotia, Table

xxn.
- (& Darlington, J., Esq.), on the produce and
profits of mines, 459 ; Table XIV.
8d



880 INDEX,

PbillipB, W., Esq., on the granite and slate of Tincroft, 658.
, „ alleged waste of copper-ore in Cornwall,

690-2.
— ^^— ^^-— — , „ silver-ores of Cornwall, 111,-12,-18,-16,

, „ stream-tin-ore „ , 859, [118.
, birth and death of, 691.
Phcsnix mines, rocks of the, 656,-69.
, „ , on opposite sides of the lode at the, 657,

669.
, „ , metalliferonB deposit of the, 676,-8,-9;

Table XXX.
, „ , subterranean temperature in the, 746.
, produce of, people employed at, and machinery at

work on the, 698.
Kok and gad, dexterity of Cornish miners in using the, 152.
Piedade, on the structure of the mountain, 298.
Pike, B. H., Esq., on the proportion of tin-ore in the vein-stones of

the Cam Brea mines, 472.
, „ produce and profits of the „ , 448,

Pindur, on the auriferous sands of the, 4, 46. [459 ; Table XIY,

Pinnock, Saint, on the rocks of, 99.
■ ■ , „ metalliferous deposit of, 704-12.
, „ proportions of silver in the lead-ore of, 120,

709.
, „ produce of, people employed, and machineiy

at work in the district of, 720.
Pipe-veins, of lead-ore, on, 620-1.
Pitanffuif on the auriferous deposits of, S^2-4.
— — , „ conformity of some of them to the jointed structure

of the rocks, 228, 819,-28.
Plants, fossil, on, in the coal-shales of New Brunswick, 508-9.
