394 
Discussion led by Arthur Fairbanks, Professor of 
Greek, University of Iowa. 
‘Martineau'’s Heredity and Philosophy ’—Rey. J. 
R. Brown, of Kansas City. 
Discussion led by C. B. McAfee, Professor of Phi- 
losophy, Park College. 
“The Psychology of Profanity ’—G. T. W. Patrick 
Professor of Philosophy, University of Iowa. 
Discussion led by D. D. Hugh, Professor of Psy- 
chology, State Normal School, Colorado. 
“The Postulates of the Psychology of Style’—J. 
D. Logan, Professor of Philosophy, University of 
South Dakota. 
Discussion led by L. A. Sherman, Professor of 
English Literature and Dean of the College of Arts, 
University of Nebraska. 
‘Some Philosophical Problems of the Present Time? 
—An informal address by J. E. Creighton, Professor 
of Logic and Metaphysics, Cornell University, and 
editor of the Philosophical Review. 
‘The Primacy of Will’—Edgar L. Hinman, Ad- 
junct Professor of Philosophy, University of Nebraska. 
Discussion led by W. M. Bryant, of St. Louis. 
‘The Psychology of Imitation’—T. L. Bolton, 
Instructor in I’sychology, University of Nebraska. 
Discussion led by H. Heath Bawden, Instructor in 
Philosophy, University of lowa. 
‘The Theory of Imitation in Social Psychology ’— 
C. A. Ellwood, Assistant Professor of Sociology, Uni- 
versity of Missouri. 
Discussion led by A. Ross Hill, Professor of Philoso- 
phy, University of Nebraska. 
The meeting next year will be at the Univer- 
sity of Iowa under the presidency of the Uni- 
versity of Iowa. 
DISCUSSION AND CORRESPONDENCE. 
CROCODILIAN NOMENCLATURE. 
Mr. WILuiaAM J. Fox (SCIENCE, February 8, 
1901, p. 232) in maintaining that the name 
Lacerta crocodilus, given by Linnzeus, has be- 
come restricted to the Nile crocodile by its 
exclusive use for the latter in Hasselquist’s 
‘Reise ,’ 1762, has apparently overlooked the 
fact that the types of Lacerta crocodilus are still 
in existence. It has been shown both by Dr. 
Loeennberg and Mr. Andersson that the speci- 
mens which served Linneeus as types for his de- 
scriptions belong to the species which is com- 
monly kuown as Cuiman sclerops. As the 
generic name of the latter is also untenable, the 
species will stand in the future as Jacaretinga 
SCIENCE. 
[N. 8. Von. XIII. No. 323. 
crocodilus (Linnzeus), while the name of the 
crocodile of the Nile remains as before: Croco- 
dylus niloticus Laurenti. 
LEONHARD STEJNEGER. 
U.S. NATIONAL MUSEUM, 
Feb. 16, 1901. 
SHORTER ARTICLES. 
STRATIGRAPHICAL NOTE. 
In Science, N.S., Vol. XIII., No. 317, Jan- 
uary 25, 1901, p. 135, I notice that the order in 
which the proposed names of the geological 
formations occurring in the Devonian and Si- 
lurian of Antigonish County, Nova Scotia, is 
given, might lead to a misapprehension of the 
natural suceession of the strata in question. I 
have much pleasure in drawing attention to the 
following notes on the names suggested and 
characteristics of the five geological formations 
as they appear, in descending order, as follows :. 
Devonian. : 
1. THE KNOYDART FORMATION. (Knoydart 
being the name of a settlement and brook in 
the vicinity of McArras brook, where this for- 
mation is well developed. The word is pro- 
nounced as if spelt Kroydiart.) 
The Knoydart formation consists of red shales 
and sandstones, marls and tufaceous strata hold- 
ing pteraspidian and cephalaspidian fishes as- 
sociated with crustaceans whose affinities are 
close to a number of forms described from the 
Cornstone or Lower Old Red Sandstone of Great 
Britain, especially as developed in Hereford- 
shire. 
This Knoydart formation is thus referred to 
the ‘Old Red Sandstone’ or Devonian System. 
Silurian. 
Unconformably (?) below the Knoydart for- 
mation we find just east of the mouth of 
McArras Brook and along the south shore of 
Northumberland straits at this point, Silurian 
strata, holding marine organisms, which may 
be provisionally divided into four distinct for- 
mations. 
2. THE STONEHOUSE FORMATION. This con- 
sists for the most part of dark red thin-bedded, 
fine-grained, shales or mudstones with a con- 
spicuous and abundant lamellibranchiate fauna, 
