Evening public ledger. [volume] (Philadelphia [Pa.]) 1914-1942, 1918-04-19
PHILOSOPHERS HEAR
VARIED DISCUSSIONS
Art, Biology, Botany and
Physical Force at Second
Day Of Meeting

Art. biology botany and physical
forces are being treated In papers read
today at the sessions Of the American
Philosophical Society This is the sec
ond day Of the organizations general
meeting. 1t will era with dinner to-
morrow evening at the University Club.
Today's proceedings opened with an
executive session at which a report Of
the proceedings Of the officers and Coun-
Gil was presented. The open session be-
gan at 10 o'clock with Dr. J. G.. Roseu-
gartcn, vice president Of the society, in
the chair.
The first paper was read ,by Stephen
b. Luce, curator Of Greek antiquities i'm
the Museum Of the University Of Penn
sylvania. His subject was History Of
the study Of Greek Vase Painting" An
interesting paper presented was that Of
Helen D. King, associate professor of
embryology at Wistar Institute, on
| Changing the Sex Ratio in the Rat"
On Typewriter Keyboards
other papers Of the morning were:
The Art of George Catlin," Edwin Swift
Balch; Typewriter Keyboards an In
qury for Some Rational Ones" DR..
Charles r. Lanman professor Of San
skirt Harvard University; "The Naiades
Of the Upper Tennessee Drainage" Dr.
Arnold G. OrtrSann. professor of phys
ical geography. University Of Pitts
burgh "a New Type Of Insect Larva,"
DR. William Morton Wheeler. professor
Of economic entomology. Busscy Institu-
ton, Harvard University; ~ Critical
Survey Of the Sense Of Hearing ia
Fishes" DR.. George H. Parker profcssot
Of zoology Harvard University; The
Perfectng Principle" DR.. l.. II. Bailey,
late professor Of horticulture, Cornell
University. Medicinal Plants-Prosent
and Future Supplies" Or. Henry Krac-
mer, heaG Of the department of pharma-
cOlogy University Of Michigan: Para
sitism Among the Red A'Eae," Dr. VIII
liam a. Setchell, professor Of botany,
University Of California
Afternoon sitting
At the afternoon session the following
papers will be read:
THE Genus Galcra in North America,
with Preliminary Notes of Some New
Species Of Agarics" Dr. George F. At.
kinNrn, professor Of botany, Cornell Uni
Ners.ty; Temperature. Inhibition and
Growth" DR., d. T, MacDougaI, director
of the department Of botanical research,
Carnegie Institution. of washington
variation in B!ueberry Hybrds," Fred
erick V. ColYille, curator Of the United
of agriculture. Washington, ID. C. "Or-
ganization, Reproduction and Hcredity
IN Pediastrum," DR.. Robert A. Harpcr.
professor Of botany, Columbia University;
The Potentials Of Certain Magnetized
Bodies DR.. Louis A. Bauer, director Of
che department Of terrestrial magnetism
Carnegie Institution, Of Washington;
Development of Magnetic Susceptibility
in Manganese Steel by Prolonged Hea'
Treatment DR.. Charles Francis Brush
of Cleveland ; "AcCeleTomcters," y w
Akinoff Philadelphia "Luminescence OF
Radium Salts" u. II. Kabakian, assist
ant professor Of physics, University Of
Pennsylvania, and f. Kara, Phladel.
phia.
DR.. Albert a. Nicholson will preside
at the afternoon session. \ reception
will be held this evening in the hall of
the Historical Society of Pennsylvania,
Locust and Thirteenth streets. Lleuten-
ant Colonel Robert Andrews NIillikan,
Phi. D., Sc D., will speak on Science
in Relation 10 the War" He is a menu
ber of the department of science and
research Of the Council of National De-
fenSe.