JJ. H. Winchell on the 'laconic. 169 
all dwelling at length on the "rocks of the Taconic range,'* 
grouped as a distinct terrane, and it is not probable that, with 
that exact knowledge he had of current literature, American 
and European, he would have fallen into such an anachronism. 
The most that can be claimed adverse to the Taconic, based on 
this expression, is that Dr. Emmons admitted that at the date 
of the writing of his official report he knew that the Cambrian 
ha J been announced by Sedgwick. But the "rocks of the Taconic 
range" had been well known under that designation, long be- 
fore they were specifically erected into the Taconic system. 
That designation had the same force, and as much right to rec- 
ognition as a geological entity, as a similai- use of the term 
"rocks of the Longmynd hills," or "rocks of the Helderberg 
mountains." One became, by an easy change in terminologv 
the Longmynd rocks., and the tipper and loivcr Helderberg 
rocks., and the other was changed to Taconic system. 
This objection could be answered further by saying that the 
Cambrian as defined by Sedgwick did not include a primordial 
fauna, and was not intended to, and has no right therefore to it. 
Its place is the horizon of the second fauna.' Its stratigraphic 
scheme included rocks both of the first and of the second faunas, 
but Sedgwick would not admit that his Cambrian included any of 
the j^rimordial rocks. A similar mistake was made by Dr. 
Emmons. His stratigraphic scheme included rocks both of 
the first and second faunas, but he carefully exempts from it all 
strata known by him to contain the second fauna. Emmons 
aimed to erect the primordial rocks into tJie Tacotiic system. 
Sedg'cick aimed to erect the second Jauna rocks into the Ca?n- 
brian system. After eliminating like mistakes from the lab- 
ors of these pioneers there is a residuum of fact and correct his- 
toric interpretation which assigns the Taconic to the first 
fauna and the Cambrian to the second." 
Objection No. 8. 
The primordial strata to which the na'ine raay be applied do 
not exist in the Taconic range of mountains and, the name is 
' British paleozoic fossils, Sedgwick and McCoy, 1855. 
2 Notes on classfication and nomenclature. N. H. WinciioU. Aiticri- 
can Na'urali-ii., August, 1S87, p. 693. 
