120 
C. N. Haskins: ‘‘Note on certain selective in- 
tegrals.’” 
L. P. Eisenhart: ‘‘Ruled surfaces with isotropic 
generators. ’’ 
J. W. Young: ‘‘On algebras defined by groups 
of transformations. ’’ 
J. W. Young: ‘‘A generalization to 3-space and 
to n-space of the inversion geometry in a plane’’ 
(preliminary communication). 
L. L. Silverman: ‘‘On absolute or unconditional 
summability.’’ 
L. L. Silverman: 
bility.’ 
W. B. Fite: ‘‘Note on a ecollineation group in 
m variables.’’ 
L. P. Eisenhart: ‘‘Congruences of minimal lines 
in a four-space.’’ 
The Chicago Section of the society met at the 
University of Chicago on December 29-30. The 
next meeting of the society will be held at Colum- 
bia University on February 24, 
F. N. Cous, 
Secretary 
““Tests for Cesaro summa- 
THE AMERICAN PHILOSOPHICAL 
ASSOCIATION 
THE American Philosophical Association held 
its eleventh annual meeting at Harvard Univer- 
sity, Cambridge, on December 27, 28 and 29, 1911. 
The meeting was marked by an unusually large 
attendance and by keen interest in the proceed- 
ings. A majority of the papers read centered 
around two main subjects selected for discussion, 
the one on the relation of object and consciousness 
in sense perception, the other on evolution. The 
discussion of the first subject was characterized 
by a departure from the method of previous meet- 
ings. This year both the papers read and the 
subsequent discussion were based on a carefully 
prepared committee report, in which both tenta- 
tive definitions and an analysis of the problem 
were made. While this method did not result in 
an agreement of any great extent, it served to 
clarify the problem and to bring to a sharper 
focus the various issues involved in it. The com- 
mittee which prepared this report was continued 
and given power to select the problem for next 
year, to formulate the issues involved in it, and to 
arrange for the discussion. Three papers and the 
presidential address were read on the subject of 
evolution, and these as well as the other papers 
read received vigorous discussion. The association 
empowered the executive committee to arrange, if 
possible, some future meetings with other societies 
in order that joint sessions may be held to dis- 
SCIENCE 
[N.S. Von. KXXXV. No. 890 
cuss such questions as that of mechanism and 
vitalism. E. G. SPAULDING, 
Secretary 
THE AMERICAN ASSOCIATION OF 
ECONOMIC ENTOMOLOGISTS 
THE 24th annual meeting of the American 
Association of Economic Entomologists was held 
in the new National Museum, Washington, De- 
cember 27-29. The meeting was called to order 
on Wednesday afternoon, December 27, and after 
the routine business of opening the session was 
disposed of the annual address entitled ‘‘The 
Relation of the Economie Entomologist to His 
Environment’’ was delivered by the president, 
F. L. Washburn, state entomologist of Minnesota. 
On the following day papers were read at morn- 
ing and afternoon sessions, and on Friday morn- 
ing, at the close of several interesting papers, the 
final business of the session was transacted and 
the meeting adjourned. 
The report of the secretary showed that the 
membership of the association had increased 
slightly during the year of 1911, and at the meet- 
ing over forty new members were admitted. This 
makes the total membership of the association, 
exclusive of foreign members, more than three 
hundred, and the interest shown in the association, 
especially by the younger members, augers well for 
its future success. 
Among the more important business matters 
that were transacted was an arrangement whereby 
the official organ of the association, the Journal of 
Economic Entomology, will, in the future, be pub- 
lished by the association instead of by the publish- 
ing company, as heretofore. The present editorial 
board will serve for the coming year, with the 
exception of the business manager of the Journal, 
Professor E. D. Sanderson, Morgantown, West 
Virginia, who voluntarily retired. The manage- 
ment of the Journal has been placed in the hands 
of the secretary of the association. 
The following officers were elected: 
President—W. D. Hunter, Dallas, Texas. 
First Vice-president—T. J. Headlee, Manhattan, 
Kansas. 
Second Vice-president—R. A. Cooley, Bozeman, 
Montana. 
Secretary—A. F. Burgess, Melrose Highlands, 
Mass. 
A full account of the business transacted at the 
meeting together with the papers read with the 
discussions will be published in the Journal of 
Economic Entomology, the first number of which 
for the current year will be issued February 15. 
