The mirror., 1923-03-15

Night Schools. or. who need helpful informa.
ious departments, will herewith be privileged
TO use tho Query" column. You are welcome
to send IN & any queries Of M serious Gus interest to
tion Of Miss Miriam E. Cary. Supervisor Of
Institutional Libraries. win gladly endeavor TO-
supply 6rtGr The requested iniormatiEn; 70 nation. -,
OF this column inmates must sign their name,
register number and lock number to all queries
submitted for publication. Inmates names. Of
Of each qusrist being used-Editor.
Q:-To settle an argument / wonder if
THE MIRROR would publish in its query
column which method if either or both
are correct. Assuming that the positive
terminal of a source of current, is not on
inspection, readily discernable from that
of the negative terminal. r. w. asserts
that a conductor (wire) connected to each
terminal of the source of current and with
their free ends submerged into two tum-
blers of slightly impure water, one con-
ductor connected to the positive terminal
will give off gas bubbles. c. E. T. con-
tradicts the assertion and maintains that
it is quite impossible, inasmuch as the cir
cult is not completed between the two
tumblers of water; even though the tum-
blers were touching. glass is a non-con-
ductor of electricity. r. w. offers re-
mark that c. E. T. will learn. c. E. T.
welcomes any data on the subject under
discussion that is not based on a purely
arbitrary assumption. G. E. T. asserts
that the two conductors connected to the
two terminals if, submerged in one tum-
bier of slightly impure water and gradu-
ally brought nearer together, and held
there until the bubbles occur, it will be
found that both conductors give off bub-
bles, but, that the negative conductor will
give off the greater amount. Will you
please publish the precise object of con-
Meeting a condenser around an interrupter
or, circuit-breaker of the primary circuit
ir high-tension ignition system.-C. E. T.
A:-See American Electricians Hand
Book published by McGraw Hill Book Co.,
compiled by Terrell Croft, page 81, Sec
tion No. 1, paragraph 135. Polarity of
direct current curcuits determined by
holding two conductors in glass of water
to which has been added little common
salt. Bubbles will form only on negative
conductor indicating the polarity of the
circuit and presence of current.-J. M.
Hunt, Assist. Mgr. Mach. Dept, North
zrestern Electric Equipment Co., St. Paul,
MINI.
Q:-Please let me know where I may
obtain the song entitled "Star Light
Night" 1t was sung in the chapel at
Christmas time-F. A. N.
A:-No trace of this so far. Perhaps
the song was "Silent Night, Holy Night
which is often sung at Christmas and can
be bought at Dyer Bros, St. Paul. Price
IS cents and up according to edition.
Q=(a) In regard to the books you
listed, are the IS cent books paper bound
or is the price misprint7 Have you any
record of the following: (b) "Hell's
Hatches" by Lewis r. Freeman. (c) "Flap-
pers and Philosophers" by F. Scott Fitz-
gerald. (d) "Satan" by H. DeVere STAG
poole. (e) Are the Short Story Collec-
tions by Edward O'Brien available for
1921 and 1922, the price and publishers7
r. L. M.
A-(a) Many books that cost two dol
lars when first printed are sold for IS
cents when reprinted. They are practi-
cally the same as when first published,
and are cloth bound. (b) Published by
Dodd, Mead, N. Y, price $500. (c)
Published by Scribner, N. Y, price $1.7s.
(d) published by MacBride, price $780,
(e) 1921, price $500. 1922 British only)
price $500.
Q:-(a) Is an inmate permitted to sub
scribe for a foreign periodical English
language) namely, "The Studio" pub
lished in London, Eng? (b) Is the Amer
ican Architect and Building News still
published? If so, what is publishers ad-
dress and price of subscription per year?
j. H. ].
A:-(a) Inquire Deputy Warden's of
fce (b) Architect and Building, month
ly, New York City. Price not given.
NOTICE-An inmates using the Query Col
umn and desiring more detailed information to
their queries are invited to use the splendid
reference books in our library to be had on
request The International Text Books are
especially complete in their information on
technical subjects Consult the Reference, Use.
full Arts. Literature. Chemistry Biography and
Science divisions Of our library catalogue for
diversified subjects