The National tribune., 1897-11-18

pass the center and return to its original
starting point. This movement would be kept
up indefinitely. Where no friction exists, rs
i'll the supposed case, motion is indestructible.
as is evinced by the earth's course round the
sun.
Mr. McCarrick has answered correctly
number of the succeeding questions. as Will be
seen below.-EDIToR PUZZLE COLUMN.
Answers.
II. Horsepower is the unit ia which form
rate of doing work is estimated. 1t is supposed
to represent (although incorrectly the power
of horse. 1t represents the work done In
raising $4,000 pounds one foot high In one
minute.-C. K. MCCARRICK.
IL The magnetic needle has d north and
south pole. The north pole always points to-
ward the north magnetic pole Of the earth.
which Is situated near the North Pole. L.
MCCARRICK.
1t is noted that the name north pole"
which is always applied to the marked pole of
magnet, Is really incorrect, that pole being
NOTWITHSTANDING pole" or in other words,
south pole, strictly corresponding to tke South
Pole of tho earth. 1t is also noted that the
magnetic poles of the earth are variable,
Changing from year to year.
Is. Bacteria belong To the lowest vegetable
class, being uncellular fungi. Their name,
Schizomycetes, means fssion iungi. in aIlusion
to the fact that they multiply by transverse
division. division wall will appear across
the simple cell forming a bacterium, become
more pronounced, and, finally, eliminate in
two bacteria. Some bacteria are motile, some
not; ali grow and increase only in aqueous
liquids, but many are capable of standing pro-
longed drying, as is eviuced by the fact that
the dust of the atmosphere contains many
viabe germs. They are the cause OF ali putre-
faction, and, In part of fermentation, although
ordinary alcoholic fermentation is caused by
higher plant-yeast.
IA. Typhoid fever is propagated by bad sani-
tary arrangements during the care of patient,
aud neglect of vessels used by same.--C. L.
MCCARRICK. 1t IS noted, in addition to Mr.
McCarrick's statement, that typhoid fever is
frequently carried by dejecta from patient
gaming access TO water-c0urses, springs etc.
1t is often conveyed to milk by use of foul
water for washing milk-cans, etc. In water
the bacterium causing typhoid lives, bat ordi-
narily does not multiply TO any great extent
In milk. however, it muiiiplies very quickly
10 The atmosphere is composed of nitrogen,
1902 per cent: oxygen, 20.94 per cent, aud
carbonic acid, 0.04 per Cent?. II. MCCAR-
RICK. In addition 1T Is noted that argOn a
new element was discovered two years ago
to form severa! per cent. of what WAS Ordi-
narily supposed nitrogen in the atmosphere,
its presence in the nitrogen having hitherto
been overlooked by chemists. The discovery
great Hodgkins prize offered by the Smith
sonian for new discoveries in regard to the at
mosphere. There also exists varying pro-
portion of water-yapor in the air.
l6 The Aryan group of languages consists
of the Sanskrit, Zend, Greek, Latin, Kettle,
Gothic, Teutonic, Slavonic Italian, French,
Spanish Portuguese, and Roumanian.-C. L..
MCCARRICK.
II. The domestic fowl is probably derived
from Gallus ferrugineus. formerly called g..
Bankiva.
19 An atoll is small island of coral inclos-
ing lake in the center.-C. L. MCCAREICK.
49, absolute zero" is AGO degrees below
zero, Fahrenheit.-C. L. MCCARRICK.
1t is noted, in addition, that it Is so called for
the reason that gases decrease for every cent?
grade degree of drop in temperature (thc pres
sure remaining constantly one 213i OF the
volume they occupy at the freezing point Of
water 20 centigrade). They, of course, do not
keep up this regular decrease III volume until
273 is reached, but cease obey ing the law at a
point varying with each particular gas. Were
| they 10 obey it strictly their volume would he
nothing at 273; or, i'll other words they would
cease to exist. AS a matter of fact they become
| liquids long before that point Is reached, and
| are then no longer amenable to the laws of
| gu5ses. The electrical resistance of metals be-
| comes less and less with fall in temperature
until, theoretically, they become infinitiveiy
| conductive at 273 Z. (460 Fahrenheit). The
| tact that these two important physical con-
stants point to the same pointers C.-(460
| Fahr.) has led to its being called absolute zero.
| IL has not as yet been reached. although Prof.
| Dewar has como within 10 or 30 degrees OF it
| IN some experiments.
90 All truss building in bridge work is based
| upon the fact that the triangle is one of the
| most rigid geometrical figures. and timhers
| placed together to form triangles form suffer
| structure than can be attained by the use of
! any other method of construction, save using
| arches. By examination of any large wooden
| bridge it will be seen that it is built up of a
| series of triangles.
One and Only One Castoria.
For moro than generation mothers have
used Castora, and babies who grew up on il
| have lived to give it to their own children.
| Now. owing to n legal quibblo spurious Cas-