430 Scientific Intelligence. 
ke Superior, Foster and Whitney, II, pp. 298-318.) The alum slate 
with the underlying sandstone represents in Sweden the primordial zone. 
To Dr. Emmons undoubtedly belongs the merit of having recognized 
for the first time the trilobites which are known to belong to the primor- 
dial zone, although from incorrect notions of siratigraphy he placed the 
slates containing them at the summit of the series of rocks to which he 
gave the name of the Taconic system. e have shown that the true 
place of these shales is at the base of the series, and that the remainder 
of the Taconic system is the paleontological equivalent of the Calciferous 
sandrock ; it is not yet certain whether these lower shales with a primor- 
dial fauna do not sustain a similar relation to the Potsdam sandstone, 1n 
lower slates as a Taconic formation older than the Potsdam sandstone of 
Lake Champlain, and subordinate to the Primordial Zone, whose fossils 
he was the first to recognize, ‘ 
2. Contributions to Paleontology, being Descriptions of New Species 
of Fossils from the Upper Helderberg, Hamilton and Chemung Groups. 
Albany. August and September, 1861. 8vo. pp. 84.—We have received 
this valuable paper at too late an hour for critical notice in our presen 
i It is, as the Author states in a prefatory note, “A Continuation 
of Appendix C of the Fourteenth Annual Report of the Regents of the 
State Cabinet, published July, 1861, and contains descriptions of new 
species of Gasteropopa, CerHatopopa and Crustacea, with notices of 
some of the species before described from the same strata.” 
“The first twenty-four pages were published and distributed in August, 
and the remaining portion is published in September according to the 
imprint at the bottom of each page. e entire paper, with illustrations, 
will be republished in the Fifteenth Annual Report of the Regents of the 
State Cabinet; and the Author will endeavor to ee tn 
receive the accompanyin with a copy of the illustrations ; 
published.” panying pages, ed ican asd 
Albany, Sept., 1861. 
Ww , 
this definite statement of dates of publication. It will be satisfactory , 
promptly 
to 
4th Avnts 
Report of the Regents of State Cabinet. The first twenty pages of t . 
Appen dix © in which, form as above stated a part of Prot. Hall’s Con 
ibutions. 
