of Albertite and allied minerals. 363 
duct of the gradual oxydation of coal-oil once filling the open 
fissure,” and further, that “it is not impossible that the lower 
regions of the fissure are still filled with liquid oil.’”* 
In 1865 in a report made upon Grahamite, Prof. Henry 
Wurtz states, that the general aspect of the mass, as well as 
all the results of a minute examination of the accompanying 
phenomena, lead irresistibly to the conclusion that we have 
here a fissure filled by an exudation, in a pasty condition, of a 
resinoid substance derived from, or formed by some metamor- 
phosis of unknown fossil matter, contained in deep seated 
strata intersected by the fissure or dike.” 
n Prof. Charles H. Hitchcock, State Geologist of 
- Maine, said, “The Albert Coal” (Albertite) “was originally 
In a liquid state, was injected into vertical fissures, and sub- 
sequently hardened into a substance resembling jet.” 
In the recent edition of his System of Mineralogy (1868) 
a 
* Thid, ix, 183, 
t Rep, on a mineral formation in W. Va. by Prof. Henry Wurtz, to the Ritchie 
Mineral Resin and Oil Oo., Baltimore, Md. 
; is Journal, II, xxxix, 272. 
; Prelim. Ren on the Geology of New Brunswick, chap. v. 
Coal or Asphalt, an inquiry into the proper classification 
New Brunswick 
Au. Jour. Sc1,—Szconp Series, Vou. XLVIII, No. 144.—Nov., 1869. 
25 
of the Albertite of 
