Middletown transcript., 1914-03-28


3. .The Dooryard"
Professor R C. Reed
l. Romance in Bacteriology
2. Animals as Disease Carriers.
8. Milk and the Public Health
Professor C. A. Short
l. Water and its Publication ~
2. Road Improvement and Mainten-
ance.
8. Rural Sanitation
4. Sewage Disposal-Its Relation to
Disease.
5. Gold Mining in California
6. The Winter Skies
Assistant Professor z. H. Srager
l. Physics in ITS Relation to Every
day Life
Professor Firman Thompson
1. Under the Southern Cross
2. The Hawiian Islands
8. Chemistry and Civilization
Assistant Professor A. C. Whittier
l. How we Live.
2. The Chemistry of Everyday Life
ELECTRICAL MEASURING INSTRUMENTS
On Thursday, March 10, Mr.. Egmont
Horn, a graduate of Delaware College
in the 1910 class, who is now connected
with the General Electric Company,
gave a talk to the Electrical and Me-
chanical Engineering students of the
Senior class of Electrical Measuring In
struments. Mr.. Horn divided electri-
cal measuring instruments into two
classes: Q) Direct-current instruments,
and ~ alternating current instruments.
Speaking of direct current instruments
he mentioned the astatic and D'Arson-
val types of volunteers and ammeters
as tn only two types which are of much
commercial Importance, and outlined
the construction and operation of each
type. Under the head of alternst ting
current instruments Mr.. Horn named
and decribed the several types of volt
meters and ammeters, laying stress upon
the electrodynamometer type of instru-
ment as being the most important type
today. In this instrument the current
flows through fixed coil and movable
coil connected in series, and the force
exerted on the fixed coil by the movable
coil defects the movable coil. The
watt-meter is simply special form of
the electrodynamometer. The reed
type of frequency indicator, which is
the best instrument of its kind on the
market, is of foreign invention and de-
pends on the natural period of vibration
of a series of reeds mounted on small
coils of wire. The synchroscope is an
instrument used in synchronizing two
motors. 1t is a decided improvement
over the old lamp method of synchro-
nizing. Because of the Importance of
the watt-hour meter, this instrument
is being used in almost every building
where electricity is used Mr.. Horn
spoke in detail of the construction of
this valuable instrument, giving the
method used for correcting the readings
for tagging currents. Finally, MIR.
Horn mentioned the Oscillagraph. This
instrument, he said, is used to indicate
and record the exact process which
takes place when an alternating current
is flowing through circuit. 1t is so
delicate that an operation which was
completed in two-fifths of a second was
recorded on a plate Is in. long He
said that this instrument, though very
expensive, was of almost inestimable
Importance to electrical engineers.
PROFESSOR MoCUE TO JUDGE CONTEST
At the request of 1.-THE Sunday Star"
of Wilmington, Professor C. A. McCue
has agreed to judge the cantaloupe and
tomato contest for which the paper has
offered 5000 in prizes. The contest is
limited to the farmers of Kent and Sus-
sex Counties. There will be six prizes
for each county. One of the first prizes
of $25 will be given for the first best
basket of tomatoes. There will be
second and third prizes of SIS and $40
respectively in each county for both
cantaloup-s and tomatoes.
The Star has selected cantaloupes
and tomatoes because it has been al
ready demonstrated that Kent and
! Sussex Counties can raise better can
taloupes and tomatoes than any other
section of the country. The conditions
of the contest formulated by Professor
McCue are as follows:
l. Any person who intends to enter
the contest must notify The Sunday Star
on or before June 1, 1914.
2. The package of cantaloupes and
tomatoes entered must be shipped to
the Sunday Star, Wilmington, Del.
! 8. No one person shall submit more
than one packageof tomatoes or more
than one package of cantaloupes.
A. Both tomatoes and cantaloupes
must be field grown. (This rule does