JANUARY 18, 1901.] 
finances of the Society are in a satisfactory 
condition, a moderate reserve fund having 
been slowly accumulated. The Society also 
possesses a considerable library, as yet of 
unbound journals and works. It is hoped 
that arrangment can soon be made for bind- 
ing the books and making them accessible to 
the members. 
At the annual meeting the following 
twenty-five persons were admitted as mem- 
bers of the Society. 
Dr. G. N. Bauer, University of Minne- 
sota; Dr. J. R. Benton, Princeton University ; 
Dr. H. F. Blichfeldt, Leland Stanford Univer- 
sity ; Dr. G. A. Bliss, University of Minnesota ; 
Professor Joseph Bowden, Adelphi College, 
Brooklyn, N. Y.; Professor D. F. Campbell, 
Armour Institute, Chicago, Ill.; Dr. J. EH. 
Clarke, Gilbert School, Winsted, Conn. ; Dr. 
Euplio Conoscente, New York, N. Y.; Mr. 
Arthur Crathorne, University of Wisconsin ; 
Mr. H. W. Curjel, Birkdale, Eng.; Professor 
L. M. Defoe, University of Missouri; Mr. B. 8. 
Easton, University of Pennsylvania; Dr. L. P. 
Eisenhart, Princeton University; Mr. U. 8S. 
Hanna, University of Indiana; Mr. L. I. Hewes, 
Yale University ; Mr. A. M. Kenyon, Purdue 
University; Professor C. N. Little, Leland 
Stanford University; Mr. H. L. Milne, Univer- 
sity of Illinois; Mr. H. B. Mitchell, Columbia 
University ; Dr. Asutosh Mukhopadydy, Cal- 
cutta, India; Mr. W.S. Nichols, New York, 
N. Y.; Professor J. M. Page, University of 
Virginia; Dr. T. H. Taliaferro, Pennsylvania 
State College; Miss R. H. Vivian, University 
of Pennsylvania; Dr. N. R. Wilson, Royal 
Military Academy, Kingston, Canada. Six ap- 
plications for membership were received. The 
Annual Register of the Society, containing a 
complete list of members, the constitution and 
by-laws, reports of the secretary, treasurer and 
librarian, etc., is now in press. 
The following papers were read at the an- 
nual meeting : 
(1) Dr. Viner SwypER: ‘On some plane curves 
having factorable parallels.’ 
(2) Professor E. D. Ror: ‘Ona formula of inter- 
polation.’ 
(3) Mr. W. B. Forp: ‘Dini’s method of showing 
SCIENCE. 
the convergence of Fourier’s series and of other allied 
developments.’ 
(4) Dr. Emory McCuinrock : ‘ A simplified solu- 
tion of the cubic.’ 
(5) Professor W. F. Oscoop: ‘On the minimum 
property of an external that meets its envelope.’ 
(6) Mr. C. J. KEYSER : ‘Theorems concerning posi- 
tive definition of finite assemblage and infinite as- 
semblage.’ 
(7) Professor M. I. Pupin: ‘Wave propagation 
over bridged wave conductors.’ 
(8) Professor MoRLEY : ‘On a point in Sylvester’s 
theory of canonical forms.’ 
(9) Professor HARRIS Hancock: ‘On primary 
prime functions in several variables and a generaliza- 
tion of an important theorem of Dedekind’s.’ 
(10) Dr. J. I. Hurcutnson : ‘On some birational 
transformations of a Kummer surface into itself.’ 
(11) Miss R. G. Woon : ‘ The collineations of space 
which transform a non-degenerate quadric surface into 
itself.’ 
(12) Professor H. E. ShAuGHtT: ‘The complete 
form system of invariants of the group of 120 quad- 
ratic Cremona transformations of the plane.’ 
(13) Dr. JAMES MactAay: ‘Some geometrical 
theorems connective with a class of differential equa- 
tions derived from Poisson’s equation 
Oz ls 2 mz ). 
ot? Or a 
(14) Mr. J. K. Wuitremore: ‘A note on cones 
of the second degree osculating developable surfaces.’ 
(15) Professor E. O. Lovett: ‘The types of line- 
sphere transformation.’ 
(16) Professor E. O. Lovett : ‘ Note on differential 
geometry of n-dimensional space.’ 
(17) Dr. L. P. EtseNHART: ‘A demonstration of 
impossibility of a triply asymptotic system of sur- 
faces.’ 
(18) Professor MAxIme BOcHER: ‘Some cases in 
which the identical vanishing of the Wronskian is a 
sufficient condition for linear dependence.’ 
After the meeting many of the members 
dined and spent the evening together. 
The Chicago Section of the Society held 
its usual winter meeting at the University 
of Chicago on December 27th-28th. A re- 
port of the sectional meeting will appear 
later in this JouRNAL. 
The next meeting of the Society will be 
held in New York on Saturday, February 
23d. The Chicago Section will meet on 
