THE SUMMER MICHIGAN DAILY

SATURDAY, AUGUST 5, 1922


French). (Illustrated). Assist.
Prof. E. E. Rovillain.
8 p. m.-Miscellaneous Readings. The
class in Interpretive Reading. (Sar-
ah Caswell Angell Hall).
Wednesday, August 9
1 p. m.-Excursion No. thirteen-
Pharmaceutical laboratories of
Parke, Davis company, Detroit.
Leave at 1:00 p. m., arrive 3:00 p.
m. at plant.
5 p. m.-Village Life in Roman Egypt
as Revealed by Documents in the
Michigan Papyrus collection, (Illus-
trated). Prof. A. E. Boak.
8 p. m.-Educational motion pictures.
Thursday, August 10
5 p. m.-Subject to the announced.
Prof. C. S. Yoakum, Carnegie In-
stitute of Teclinology.
8 p. m.-Modern One-Act Plays. The
class in Play Production, under the
direction of Prof. R. D. T. Hollister.
Admission will be charged. - (Audi-
torium of University hall).
Friday, August 11
5 p. m.-History and Citizenship; a
New Examination of an Old Subject.
Prof. W. A. Frayer.
8 p. m.-Richard Brinsley Sheridan's
1 "The Rivals." The class in Play Pro-
duction under the direction of Prof.
R. D. T. Hollister. Admission will
be charged. (Auditorium of Univer-
sity hall).
Saturday, August 12
8 a. m.-Excursian No. fourteen--
First National Bank, Detroit, Bob-Lo
Island, and the Detroit river. Leave
at 8 a. m., arrive at First National
Bank 10 a. m. Lunch at noon.
Leave on Bob-Lo boat at 1:30 p. m.
Leave Bob-Lo at 6:30 p. m.
spearean Reading. (Sarah Caswell
Angell hail).
Geology Camping
Not "So Soft"
Getology campers who journeyed to
Kentucky with Prof. Carl 0. Sauer, of
the geography department, with the
idea that they would get a "good soft
vacation" had no idea regarding the
paces that they would be put through
before the camp broke up, according
to a member of the contingent who
had just returned to Ann Arbor.
The cool comfort of the shade trees
along the banks of the Cumberland,
was a temptation which was too sel-
dom realized, for the trips assigned
to the men necessitated tramping up
and down hills and through trees and
underbrush, and before the day's
work was done 15 or 20 miles was
covered. On these expeditions each
man carried his own food, consisting
of a "pair of sandwiches" and a choc-
olate bar. Appetites were large in size
and common property at the camp.
The heralded hostility of Kentucky
mountain folk toward strangers, invar-
iably turned into friendship when they
became assured that the campers were
in no way connected with the local
sheriff's office and many hungry tramp-
ers were treated to old fashioned Ken-
tucky dinners, after the campers were
known to be just "No'th'n college fel-
las."
Invariably, according to the camper
who returned -yesterday, the men are
leaving camp in better physical condi-
tion than Nvhen they arrived. As
proof of his contention, he reported a
personal acquisition of an additional
ten pounds of avoirdupois. And his
appearance bore out his statement.

British Shipbuilding Reduced
London, Aug. 4.-Lloyds Register re-
flects the depression in the shipbuild-
ing world. For the quarter year end-
ed in June there was a decrease of
316,000 tons in ships under construc-
tion in the United Kingdom, as-against
a year ago. Also work had been sus-
pended or1 481,000 more tons. Ton-
nage launched during the quarter Is
185,000 less than in the March quarter.
Construction abroad also shows
material decrease .

THEORY OF RADIO
TRACED IN LECTURE
Prof. N. K. Williams, of Physics De.
partment, Gives Demonstrations
With Wireless Equipment
SAYS RECENT DEVELOPMENT OF
RADIO DUE TO AUDION BULB
Tracing the theory of wireless and
showing its practical application, Prof.
N. H. Williams, of the physics depart-
ment, spoke on "Radio Communica-
tion," yesterday in the west lecture
room of the Physics building. Profes-
sor Williams first drew the compari-
son of resonance of sound waves in
air with those of the radio in ether.
He then illustrated, with slides and
experiments, the transfer of energy
from point to point. Of particular in-

tet'est was the ringing of a bell, by
bringing an excited stick of rubber
near a piece of apparatus, which was
followed by the operating of a motor
controlled through the same means.
Professor Williams explained the
working of the audion bulb amplifier
and dectector and used a series of
them in his receiving set, which re-
produced victrola music broadcasted
from the station in the Physics build-
ing. The speaker also magnified the
tick of a watch until the sound re-
sembled a loud typewriter tick.
Professor Williams stated that the
introduction and perfection of the au-
dion bulb, within the last three years
has resulted in the wide use and de-
velopment of radio equipment.
AERONAUTS WILL BAN STUNT
FLYING OVER POPULOUS AREAS
(By Associated Press)
Washington, Aug. 4. - Low flying
over crowds or trick flying over any

populous area will be prohibited in
all parts of the United States by an
aeronautic code of safety being draft-
ed by experts of the Bureau of Stand-
ards, the National Aeronautic asso-
ciaion and the Society of Automptive
Engineers
DELIVERY NOTICE
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