liules cnid lli.srule.s in Classijication. — Marcou. 41 
eastern Newfoundland, so well worked out by one of the Pro- 
vincial geologists, Mr. J. P. Howley, found at Manuel's brook 
a new railroad cutting, showing a good, fresh section with well 
preserved fossils, and among them a trilobite which he classi- 
fied as belonging to the genus Elliptocephalus [Olenellus), 
calling it OleneJkis brijgyeri. Against all pal?eontological rules 
established by Alexandre Brongniart, which demand similar- 
ity and even identity of forms of fossil animals to correlate 
one formation with another, the beds of eastern Newfoundland 
containing ElUptoceplialus (Olenellus) broggeri, were regarded 
as the equivalent of the Georgia beds of Vermont. The two 
faunas have absolutely nothing in common; on the contrary, 
the eastern Newfoundland fauna contains forms of fossils all 
older than the Georgia ones, for even the -Elliptocephalus (Ole- 
nellits) is not an Oleiie/lns, but a true Jlolmid. 
Following are the lists of Georgia and Manuel's brook, as 
given by the Bidletin of the U. S. Geological Survey, No. 81, 
at pp. 260-261 and 278. At Manuel's brook the fossils are: 
Obolella atlantica, Hyolithellus micans, Ilelenia bella, Hyo- 
lit.hes princeps, II. impar, H. quadricostatus, If. similis, H. 
terranovicus, Scenella reticulata, Stenotheca rugosa, varieties 
acuta, casta, erecta, Uavis, and pauper, Platyceras primo'vum, 
Microdiscus helena, M. speciosns, Olenellus (II.) broggeri, 
Avalonia manuelensis, Agraulos [S.) strenuns and var. uasutus, 
Solenopleura bombifrons. S. harceyi and S. howleyi. 
At Parker's quarry, Georgia, the fossils are: Palaiophicus 
incipiens, P. congregatus, Diplograptus simplex, Cliniacograp- 
tus ? emmonsi, Katorglna cingulata, Orthisina orientalis, O. 
festinata, O. transversa, Ificrodiscus parkeri, Mesonacis ver- 
montana, Olenellus thornpsoni, Oleniodes marcoui, Bathynotus 
holopyga, Ptychoparia adamsi, P. vulcanus, Protypus hitch- 
cocki, P. senecfus and P. senectus var. parvulus, and it is im- 
possible to account for the absolute difference in the two fau- 
nas, by the great distance, for the true Georgia formation, 
with its characteristic fossil, the Elliptocephalus (Olenellus) 
tho7npsoni, hsLH been followed through the entire province of 
Quebec, as far as the peninsula of Gaspe, and even on the 
western, or French shore of Newfoundland, where a well- 
preserved head of Elli/)toce/)halus (Olenellus) thornpsoni was 
found by the late J. Richardson, of the geological survey of 
Canada. 
