462 S. B. Christy— Genesis of Cinnabar Deposits. 
In the third place, the formation of many of the ore bodies 
cannot be explained upon the sublimation hypothesis. Many 
of them, notably that of New Al maden, contain carbonates 
so intimately mixed with cinnabar that the py Rew is inev- 
itable that they were formed in the same, i. e. in the wet way. 
he occurrence of quartz and bitumen iaclanatobe mixed shows 
the same thing. 
Again M. Kuss* himself, though evidently a toward 
the volatilization theory, admits that: “The erial of the 
quartzite which is lacking to-day in the soaks Nenegnen 
with cinnabar, certainly could not have been missing either at 
the time of the first deposit of the beds or after the strong pres- 
sure which compressed and straightened them. How could this 
sappearance of siliceous matter be effected, matter —_ 
inattackable by all the reagents which we can imagine to 
intervened during the epoch of the formation of the veins pat 
cinnabar?” This disappearance of siliceous matter is certainly 
cumin hypothesis; but by the suppo- 
par of the paper as accompanying Caines all, with the possi- 
le exception of magnetic iron pyrites, have been produced in 
the wet way by various experimenters as the following refer- 
ences will show. 
Daubrée ibid. 
Quartz, De Sénarmont, Ann. Ch. Phys., xxxii, 
129. 
Heavy spar, De Sénarmont, Ann. Ch. Phys., Xxxii, 129. 
Dolomite, Hunt, Am. Jour. Science, II, xxviii, 170, 365; xlii, 49. 
Spathic iron, De Sénarmont, Ann. Ch. Phys, +ex, 153. 
Gypsum, as Compt. Rend., xlviii, 100. 
Seager Compt. Rend., stv 29, xx 207. 
Cale spar, {Re se, Pogg. Ann., xii, 533 ? sides 
The production of bituminous inaterial similar to idrialite 
has been accomplished in the same way, by heating ed scree 
matter with water in closed tubes at high temperatures. 
_ fact this transformation is invariably regarded not as the palk 
ene Ot at Mien ot Uininae @ Almaden, p. 44. Translation of same by 
writer, p. 
* Epona Metamorphism, Annales des — 5th series, vol. xvi, II, end of 
