Evening star. [volume] (Washington, D.C.) 1854-1972, 1929-03-15

circle. Theoretically the North Star
could be seen, under perfect atmos-
pheric condition, from the North Pole
to point about degrees south of the
Equator.
@. How is a bell toned?-N. z. p.
A. The McShane Bell Foundry Co.
says that this is considered by prac-
tically all bell founders as secret proc
eSs; the fundamental requirements,
however, are based on perfect mathe-
NAUTICAL calculations and acoustics. In
other words, a bell to be of perfect tone
should be perfectly proportioned in re-
lation to its diameter. height. width
across the top and wall thickness. If
the proportions are correct the resultant
tone of the bell will be likewise correct
to the note for which the bell was de-
signed. Modern methods have made
it possible. where slight variations oc-
cur, to tune the bell and correct the
proportions within itself automatically
to correct or make positive the note(for
which it is designed.
@. How can the disagreeable odor be
removed from acetone?-I. F.
A. The Bureau of Standards says
that many people seem to think that
an odor is something extraneous. which
can be removed from substance with
out otherwise changing It. The fact IS
that the chemical constitution Of every
substance determines whether or not 1t
has an odor, and what that odor shall
be. Acetone is one of the substances
which have an Odor. Its odor Is as
much part of 1t as the fact that it is
composed of so many atoms of carbon,
| hydrogen and oxygen combined in
| particular way. SO 1t is not possible TO
| deodorize acetone. However. by suit
able chemical treatment certain dis
agreeable smelling constituents can be
removed from it and thus its odor will
be made less penetrating. Treatment
with fullers earth or absorbent char
coal might remove some of these inn
ptlritteS.
Q. Have there ever been any famous
tenors who started their musical ca
reers as baritones?-H. S.
A. There have been great tenors OF
worldwide renown who were trained as
baritones and in their early days sang
in public as such. Two Of the most re-
markable cases are said to be that Of
Sims Reeves and Jean de Reszke.
@. How did the ancient Egyptians
divide up the year?--W. H. E.
A. The ancient Egyptians had year
| determined by the changes of the sea-
! son without reference to the changes Of
| the moon, containing 365 days, divided
| into IL months of 80 days each with
five supplementary days at the end OF
the year.
@. What animal can be used In test
| ing air for carbon monoxide gas?-
r. l.. w.
A. The easiest method for use BY an
| unskilled observer Is to subject canary
| or white mouse in a cage to the at
| mosphere to be tested. Both of these
animals invariably become unconscious
before the concentration of this gas Is
| sufficient seriously to affect normal
| person. 81,
@. What Is the loss by evaporation 10
storing gasoline in underground tanks?
Fl. o. S.
A. 1t is believed that such loss Is
small, considerably less than per cent.
@. What were the words that william
| Cullen Bryant as editor of the Evening
| Post would not have used in his paper?
| p NJ. H.
A. Among the expressions and words
which William Cullen Bryant forbade
being used in his newspaper were the
/ following: Artistic, authoress, bogus,
| casSet (for coffin, debut, decease Gas a
verb, donate, enploye. graduate 6or
! is graduated). gents. humbug, in our
midst. jeopardize, loafer grafton, pants
flor pantaloons). poetess, Rev. (for the
Rev., role, rowdies, state (for say, via
and would seem.