a 
P. 
1886.] Invertebrate Paleontology for 1885. 511 
genus of Pteropods from the St. John group (Cambrian).” In 
this he describes the genus Diplotheca. He has a “ Note on the 
genus Stenotheca ” in the Geol. Mag., new series, Decade 111, Vol. 
1I, p. 425. In the Trans. Roy. Soc. Canada, Vol. 11, Sec. 1v, p. 
99, appear his “Illustrations of the fauna of the St. John group 
continued ; and a paper on the Conocoryphea, with further re- 
marks on Paradoxides,” 
Charles Morris, in the Proc. Acad. Nat. Sci. Philada. for 1885, 
: PP. 97 and 385, has two articles entitled, “The primary condi- 
A tions of fossilization,” and “ Attack and defense as agents in ani- 
mal evolution.” 
Otto Meyer, in the Amer. Your. Sct., 3d ser., Vol. xxix, p. 457, 
and Vol. xxx, pp. 60 and 421, has an article in three parts, enti- 
tled “ The genealogy and the age of the species in the southern 
old Tertiary.” The author assumes the extraordinary position 
that the succession is just the contrary from what it has hitherto 
been considered to be, the Vicksburg, according to him, being the 
oldest and the Claiborne the most recent formation. In “ Part r. 
The geological relations of the species,” he partially describes a 
number of species and varieties, without any illustrations ; these 
à he considers to be new. Part 11 is on “ The age of the Vicksburg 
: and the Jackson beds.” Part m, “ Reply to criticisms.” The 
author defends his views against the criticisms of E. W. Hilgard, 
E. A. Smith and T. H. Aldrich, in the October number of the 
Amer. Four. Sci. In Science, Vol. v, p. 516, and Vol. vi, p. 143, 
he has two notes on Angelo Heilprin’s criticism of his work. 
J. S. Newberry, in the Ann. N. Y. Acad. Sci., Vol. 11, p. 217, 
has a “ Description of some peculiar screw-like fossils from the _ 
Chemung rocks.” They are also described in the Trans. N. Y. 
b Acad. Sci, Vol. 1m, p. 34 
H. A. Nicholson and Robert Etheridge, Jr., in the Geol. Mag., 
s 
=» new series, Decade 11, Vol. 11, p. 529, have an article “On the © Roy 
Synonymy, structure and geological distribution of Solenoptera 
compacta Billings sp.” 
H. A. Nicholson and A. H. Foord, in the Aun. and Mag. Nat. - 
Hist, 5th ser., Vol. xvi, p. 496, have an article “On the gma 
Fistulipora McCoy, with descriptions of several species.” Lo 
i A. S. Packard, in the AMERICAN NATURALIST, Vol. xIx, pp. 29%, 
—— 7005790 and 880, has the following articles : “ Types of Carbon- - 
F iferous Xiphosurą new to North America ;” “The Syncarida, a 
Be. 
an if 
ed 
* 
ts 
