PROF. HOFFMAN HAS
APPARATUS TO TEST
HEAT CONDITIONS
An apparatus for testing the con
ditions of furnace heat as supplied
to houses is being set up by Prof.
James D. Hoffman of the M.E. de
partment. The first test was run
last Saturday.
The apparatus at present consists
of an electric furnace having a range
of from .9 watt to 30 watts. This
gives a constant flow of hvat as in
a furnace and the velocity, tempera
ture and expansion of the air can
be measured.
Tests will also be run on humidity
and air washing in the near future.
The wood laboratory is at present
working on the patterns for the cast
ings and apparatus used in revolving
the domes of the new astronomical
MAKE INTERESTING TESTS
WITH CORE IN CASTING
T. II. Smith, instruction in foundry
and forge work, is making a series
of tests to determine the tensile
strength, relative porosity and the
amount of gas which would be given
on" by a core in a casting, with in
teresting results.
To determine the tensile strength
of the core an apparatus is con
strued which has a pair of grips
made on the order of scissors. The
briquets .are made of sand and being
friable make the use of the ordinary
briquet grip very difficult so the
scissors construction was restored
to and the tensile test made in the
ordinary way.
To test the porosity of "a core a
reservoir of compressed air of deli
mits capacity and pressure is ex
hausted through a one-inch cross sec
tion of the core. The time required
A Most
Attractive Figure
A corset is so personal so
much a part of one's very self
that it should be most thought'
fully selected and fitted by a
skillful fitter.
Kedfern Models enhance
figure beauty and correct figure
defects.
You will appreciate the
value of a Redfern Corset,
and you will like the beauty
of form and exquisite dairv
tiness of the latest models.'
$3
up
who is in charge of this department,
txpects to have them completed
soon.
THE UNIVERSITY OF CHICAGO
with which is affiliated
RUSH MEDICAL COLLEGE
i Offers courses in the medical
: branches leading to the degree of M. D.
The courses offered in the Summer
! Quarter correspond in character and
value to those offered in other quarters.
Summer Quarter, 1917
1st Term June 18-July 25
2d Term July 26-Aug. 31
LAW SCHOOL
Offers three-year course leading to
degree of Doctor of Law (J. D.)
. Circular of information will be sent
: upon application to
1 The Medical Dean
j THE UNIVERSITY OF CHICAGO
I Chicago, Illinois
For Sale by
MILLER & PAINE
Inc.
0 & 13th Streets
Keep
Carbon
Copies
of lectures, theses, etc. This
can only be done by buying
or renting a typewriter.
Special rates to students.
Phone or call at
L C. Smith & Bro.
Typewriter Co.
LINCOLN, NEBR.
observatory. The patterns for the i .mi
" to exhaust the reservoir will depend
tsessey .uicruiuiue ur aiu icmnns . .. , ..
careful attention and A. E. Bunting, i ,.,... n i
ferent cores.
From these two tests the core j
would be made up as best deter-1
mined from plotted charts, and e- j
posed to the action of molten iron, j
The gas is collected and measured, i
From these three tests the core
would be made up to suit the require-1
ments in a logical and scientific man-1
ner rather than by depending upon ;
the experience of some one man.
A very interesting phenomen came
to light the other day during the
hardening of some steel arbors. The
arbors were placed in a cast iron
box and packed with charcoal. The
box Was then put in a gas furnace
and heated for six and one-half hours I
but the heat of the furnace was so
great that the box was melted, al
though the arbors were not damaged.
During the excessive heat the box
under went a peculiar change. The
outer surface of the box, formed a
heavy oxide or iron and, this having
a greater affinity for the carbon than
the iron itself, extracted the carbon
from the iron for a depth of about
1-16 of an inch. A fracture of the
box shows that a steel case has
been formed on the outer wall of
the box and a distinct line between
the cast iron and the steel can be
seen with the naked eye.
When examined under the micro
scope the inner surface of the box
shows the carbon to be in the origi
nal state, in small flakes of graphite
throughout the iron, while the outer
surface shows holes which were once
occupied by the carbon but from
which the carbon has been extracted.
struction a high tension wgn ire
quency transformer which when com
pleted will be capable of- delivering
a half-million volts at a frequency
of four hundred thousand cycles per
second. The transformer will be
contained In an oil filled case and
will be much better than the one
built last year and used in the
laboratories on engineers' night. The
work Is being done by students un
der the supervision of F. C. lloltz.
CHAPIN BROS. 127 So. 13th St
...jflowers ALL THE TIME
Classified Advertising
Lost Pi Kappa Phi pin; finder re
turn same to student activities of
fice. Liberal Reward 121-2-3-456
! Men interested in Summer work
see C. G. Amick, 545 No. 14th.
T-W-T tf
What will you sell this summer
An Eastern Corporation wants eight
men to sell
A WAR SPECIALTY
Inquire Mr. Caldwell, Savoy Hotel
Thursday: 2 to 4 p. m.
6:30 to 7:30 p. m.
TWZ
Owing to unusual war conditions
the ordinary thing which college
and University men sell may go
pretty slowly this summer. Here is
an excellent opportunity for eight live
wire men. TWZ
Vi
1
Flannel
Suits
in either Blue or Green Pinch
Back or 3 4 Belt
SPECIAL AT
e in
ENUS
lO PENCIL
No matter what course you're
taking you need this famous
pencil!
A nECAUSE of the
D superlative qual
ity of material and
workmanship, VENUS
J is admittedly the finest
Of pencil it Is possible to
If you like a thick
jj soft lead that marks so
that you can read the
writing half way acrose
the room, choose the soft de
grees 6B 5B 4B.
For short-hand notes or easy
writing 3B 2B B (medium
soft) are popular.
For sketching, gen
eral writing purposes,
etc., HB F H 2H
(medium) will prove
desirable.
For drafting, a me
dium hard pencil gives
the best results and
you'll like 3H 4H 5H
6H.
For very thin, narrow lines
for extremely accurate graphical
charts, maps, details, etc., 7H
8H 911 are available.
Look for the distinctive water
mark finish on each of the 17
black degrees and hard and
medium copying.
Your professors will confirm
these statements as to the
merits of VENUS pencils.
For sale at
THE COLLEGE BOOK STORE
This box of
VENUS sam
ples free. State
the course you
are taking
11
rv r - -w v
FREE
AMERICAN LEAD PENCIL CO.
2i5 Fifth Ave. Dept H H,
New York
ENGINEERS VISIT
LINCOLN TELEPHONE
PLANT MONDAY
On Monday morning Professor Hol-
lister's class in telephone engineer
ing were given a little insight Into
the practical operation of telephony
by a trip through the exchange of
the Lincoln Telephone and Telegraph
company. Mr. Brewster of the traf
fic department was in charge. This
plant has a total of forty positions
or sections of central board, thirty
two of which handle toll or long dis
tance work. Direct supervision over
both local and long distance traffic
is had. In addition to these boards
there is a "B" board which was
installed at a cost of fifty-thousand
dollars and is to the companle's
knowledge the largest of Its kind
in operation. This company handles
press and news for the dailies and
is able to transmitt both telephone
and telegraph work simultaneously
over the same lines.
ENGINEERING NOTES
Due to the unsettled conditions
brought about by the war, the good
roads school which was to have
been put on by the college of en
gineering during the first week In
June has been postponed indefinitely.
C. K. Pairie, E. E. '13, visited Uni
versity friends this week. During
the past year he has been located
at Clinton, la., with the Curtis Bros.
& Co., where he has been responsible
for the electrification of their wood
working plant. He is now on his
way to Oklahoma City, Okla., to take
charge as manager of their branch
at that point. He has just spent
five weeks In visiting other branch
houses and acquainting himself with
he up-to-date details of their lum
ber and mill working establishments.
The department of electrical en
"SPA"
Qt your Lunches at the
City Y. M. C. A., Cafeteria Plan
13TH AND P
WE PRINT OR ENGRAVE
CARDS for your graduation
and Invitation or Announce
ments latest styles.
Graves Printery
Class
Distinction
JESS WILLIAMS'
ORCHESTRA
L-9783
L7779
CLEANING
SERVICE
You need not have an ex
tensive Wardrobe with our
prompt service at hand.
Phone us any day if you
want garments cleaned and
pressed by evening. We can
do it and do it right.
LINCOLN CLEANING
& DYE WORKS
326 S. 11th Lincoln, Neb.
LEO SOUKUP, Mgr.
Ufa?
mum Mm'
ii" PERFECT OUMrWU
ISO!
i r i in in uijiLiu-Ka ai it ffignwiHiffniHnH
IN
733
CiiCl'J H GfiQf GUQity iiSQOl
TOI
okul
THE languorous charm of the
Hawaiian native instruments so
moving in appeal, so observably
in vogue is strikingly characteristic
of the Ukulele. Its tone possesses that
curiously beautiful timbre, that exotic
charm of tonal quality which has
made these instruments so sensation
ally popular.
The Ukulele has a pleasing grace of
form. The finer models are made
of genuine Hawaiian Koa wood. It
is much in request today among the
smarter college and other musical
organizations.
It i easy to learn.
Instruction Book,-
Its price includes an
Lyon V Heafy "Washburn"
Ukuleles, $15.00 i Leonard!
Nunet genuine Hawaiian make,
$7.50; A fauna Loa brand, $4.
May bt had of 12,000 leading
music dealers. Write for name
the nearest dealer.'
Hawaiian Steel Guitar
Every chord struck upon this typically rep
resentative Hawaiian instrument is marked
by a weird, plaintive harmony and strangely
beautiful qualities of tone. It brings, to any
music, qualities full of vivid color and va
ried charm.
Prte IS 00 uvl ipwrnMi, iadxlioc Strrl tni Set mi Tares
TkiaMa fee playuif , tad Imiuih Hot.
Catalogs oh application.
51-67 JACKSON BOULEVARD
I
CHICAGO
I
9
I
gineering has In the course of con-