332 Marcou’s Geology of North America. 
ports, vol. iii, p. 100). I feel convinced that it is distinct from 
the true G. Pitcheri of Morton, (Marcou’s G. dilatata).” 
? 
36, p. 
plate 2, fig. 8,) as has been determined by Prof. Hall. ” Roemer 
Owen referred it to Sp. fasciger Hichwald. It is very common in 
the west, ranging from Ohio to the Rocky Mountains, and from 
Nebraska to New Mexico; Mr. Hayden found it in the Black 
ills. It is known to range up nearly to the base of the Permian 
in Kansas; but I have no knowledge of its having ever been 
found in Lower Carboniferous rocks. Figure 2 on the same 
plate also referred to S. striatus, I am inclined to believe is not 
that species; some four or five American species appear to have _ 
been confounded by different authors under that name. There 
are many other American Carboniferous species set down as 
identical by Mr. Marcou and others, but it is well known to 
American paleontologists that the whole subject requires careful 
revision.” 
‘Mr. Marcou, on page 67, in a note, mentions that fossils from 
Vancouver's Island, have been determined as Cretaceous by F. 
. Meek; but he thinks the determination an error, and that 
they are Jurassic. In the paper referred to (Trans. Albany In- 
stitute, vol. iv, p. 87), Mr. Meek speaks of the fossils placed in 
his hands by Dr. Newberry as belonging apparently to two 
rocks. Part of them he pronounced decidedly as Cretaceous— 
_not known. 
has overlooked the Eocene Terti of California. He makes 
the strata in California, from witieh De Trask describes Baculites 
and Ammonites, Jurassic, when they are obviously Cretaceous. 
But it is not necessary to enter into further details. 
. ¥. Grotoaica, Map.—This map is open to most of the objec- 
tions noticed 2 ibe former reviews in this Journal,* and we need 
not repeat. With regard to the region beyond the Mississippi, we 
Tefer again to the pomce) oon whose peo we have cited, 
--* Volume xvii, p. 199, 1854, and xxii, p. 383. 
