270 Scientific Intelligence. 
sition of certain minerals, made during my examination of the mines 
of Cornwall and Devon. 
To enumerate all need substances of which the lodes i ms that district 
and at present nestle not a very wok one: I have aaa tabula- 
ted the order in which the more abundant of them ur. 
nature of the (country) containing rock is refixed :—the first column 
denotes the mineral adjoining the (wall) side of the lode; the second, 
that which rests on that named in the os the third, the pai 
exces the saad and so on: the last column contains the names 
of the localities. The italic mas denotes the crystalline ; 
the Roman, the massive minerals. 
Mineral adjoining Mineral resting on that| Mineral resting on that Take! on math aes Localities. 
wall of lede. in first column. in second column. | third column. 
Containing rock—GranirTs. 
Quartz : Quariz i ‘ A att, : : : Numer 
Quartz ge Opal aes en ees: Whieal Cairns 
Quartz ‘ Quartz ee cedon ah ae edn-an-drea. 
Qui b Quartz 6. +. Araeniate if iron (ney Wheal Gorland. 
Quartz picts Quartz ee ee Wolfram , «> |St Michael’s Mount. 
uartz Say Wenn... te Eregh lore of copper . «+  |Wheal Unity. 
Quartz 4 é Quartz Pe : Uranite : ‘i Gunnis Lake. | 
Quartz ee eg Oxyd of tin ‘ Tungstate o lime Piss ab Wheal Friendship. 
Quartz eg Native copper. Red oryd of copper ne Wheal Gorland. 
Quartz binant | Malachite é ahh Nees wtpach Guunis Lake, 
Quartz ; quarts piteh : : . ... {East Wheal Crofty 
Amel thystine quar tz |\Q 3 a > G ny Pr. i Whe Bel " 
y g + . . . - ‘ Dart r, 
Felspar 7 * Phosphate of iron : ; “ A : Park-noweth. 
Pluet..4) 6 t Flu Quartz mn "i _ Wheal Gorland. 
Onyd tin «|, raat emacs wd 10 ae 
paki e Hn Seat uret o, of bismuth P P 3 re : Ralleswidden. 
Hem n ore ular iron ore Sel cee oe ee icicle Park-noweth. 
(Enea shreend iron ofel Prec eous ee ore |Black copper ore 4 [Whe a] Jewel. 
|Earthy brown iron ore! Red oryd of copper Y ss . . Wheal Gorland. 
Containing rock—GrEENSTONE. 
TZ oe < artz ne, Po eV hoes Edward. 
, See ; Arragonite . " ; < Levant, 
uartz Feet Quartz es yy vee ee of Wen oe Restorm 
WwartZ carat Quartz ; ‘ Walfra 3 ; Poldice. 
uartz eR Quartz sie Ars tate copper hei sia Wheal Unity. 
uartz ; mar reac Ar. sehiate A lead gage Wheal Unity 
uartz J - Chlorite : - Oxide of tin ‘ ‘ veal Vor. * 
uartz < ‘ Chlorite " ‘ epseprele of lead ; x Wheal Unity. 
vartz =. ss {Fluor a "1 lWheal Unity Wood. 
uartz Rees Arsenical pyrites Tater aioe pyrites er Pe 1 Unity Wood. 
aye SS : Earthy brown iron ore Presghaté of copper : ; Gunnis Lake. 
uartz ieee arth y brown iron ore Piteh-bleude : * J. |Wheal Edward.” 
uartz ‘ ‘i irthy brown ironore Uranite  . i ; ‘ Wheal Edward. 
artz arthy brown iron ore Vitreous copper ore ey tallack. — 
a Carbonate of iron |Spa ose iron ore 4ivrk tallack, 
dartz ¢ Vitreous si iy ore (Arr. agonite . s ' Levant. ; 
wartz ob te) NChlorite ‘Copper pyrites . ‘Mineral piteh!Nort! 
Containing rock—FeLsPar porpuyry (Elvan). 
xyd of tin P Oxyd of tin P s 
Silicate of tin. “ue ieee eee 
Quartz ‘oe bed brown iron ore tas arbnat wy ! 
te 7, brown iron mgeablaese tea ‘ . a” me 
Cop r pyrites ee toe * 
Eurthy b rown iron ore C capper a Fy ee ee : 
Eee ve _ pied 2 Salle copper . Pe ee a 
rth copper ore ; seine : 
earthy acy ish ore Red ox She copper 5 EEL By : 
brown iron nore draeniate of of meet: ot an He eet ‘ 
Earthy brown iron ore|Crysocolla ‘ : ‘ 4 . 
