11(3 The American Geolof/ist Fobmary. i897 
(luoted, even b}" generic name; and as to Cambrian (Taconie) 
fossils, there is only the indication that Mr, Walcott has 
found at Clarksburg mountain, on the prolongation of Grey- 
lock mount, "numerous casts of Olenellus [ Ell i otocephalus), 
showing the lower part of the quartzite to be of Lower Cam- 
brian (Lower Taconie) age." No description, no figure of 
that trilobite is given, so we do not know if it is the species 
of Georgia, although it seems to point out that it is, with the 
wrong determination of Lower Cambrian — as at Manuel brook 
(Newfoundland) — instead of the upper part of the Middle 
Cambrian (Middle Taconie). To add, if possible, confusion 
to the already sufficient amount of unproved correlation, the 
authors hint at p. 29 that the Rowe schist may represent 
"Hudson River group!" or "perhaps Medina time" ! ! 
We read at pp. 127-128 of th? report on mount Greylock, 
by Mr. T. Nelson Dale, the following correlation, which is 
an3^thing but the "intention to keep wholly clear of the Ta- 
conie controversy," expressed in the preface of the memoir. 
Greylock schist. Thickness 1,500 to 2,200 feet. Walcott's Hudson 
River (Lower Silurian). 
Bellowspipe limestone. Thickness 600 to 700 feet. Walcott's Hudson 
River (Lower Silurian). 
Berkshire schist. Thickness 1.000 to 2,000 feet. Walcott's Hudson 
River (Lower Silurian). 
Stockbridge limestone. Thickness 1,200 to 1,100 feet. Walcott's "Ole 
nellus" (Lower Cambrian). 
The whole is in concordance of stratification, a stratigraphic 
anomaly rather difficult to explain: but no attempt is made 
in that direction. 
We have in the whole memoir the most flagrant disregard 
of all the rules in stratigraphic classification and correlation 
as they were established by the founders of stratigraphical 
and historical geology. 
The New Red or Dyas and Trias. 
Dr. Ebenezer Emmons was the first observer who divided 
the great series of the New Red sandstone, in the eastern or 
Atlantic states, into Permian (Dyas) and Trias in his "Geo- 
logical Report of the Midland Counties of North Carolina," 
Raleigh, 1856. Following closely all the rules of stratigraphic 
classification, he referred the Chatham series of North Caro- 
lina to the Permian (Dyas), and the Deep River series with 
