The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1885-1921, 1901-09-23


shown by DR.. Willoughby Gardner to
be a great energy producer, and the
last half-century' increased height and
weight and improved health of the
English people are attributed in. large
measure TO the greater use of sugar.
Liquid bronze free from metal is
made by a German chemist by dis
solving ten parts of aniline red and five
of aniline purple in 100 of alcohol, with
gentle heat, then adding five parts of
benzoic acid and boiling the mixture
from five to ten minutes The bronze
is intended for application to wood or
paper.
Potato alcohol mixed with twenty per
cent of benzine has been found in Ger
many as economical as gasoline for
motors.
What is described by Prof r. w
Wood as the most startling illusion he
has ever seen is produced with a lead
pencil and wire window screen in
front of a sky background. The pencil
is held point up an inch or two from
the screen, and the eyes are focused
upon the point, when the wire gauza
appears blurred and doubled. but with
a little effort the images of the mesh
are brought out distinctly, and appar-
emily in the same plane as the pencil
On moving the latter away, ii appears
to pass through the screen and be-
come doubled, the images diverging
until the point is stopped by the wire
If the pencil is now withdrawn. the
sharp image of the combined images
t1,n
the eyes to within six or eight inches
and attempting to touch the wire, thu
surprising discovery is made that the
wire is not where it Is seen. 1t is a
couple of inches farther away.
The simple apparatus with wncn
Prof. a. l.. Metz, of Tulane University,
produces air ice consists of a test tube
! d little more than an inch in dame
| ter and eighteen inches long. with Il
cork provided with a bent glass tube,
and vacuum pump. Liquid air is
turned into the test tube until 1t is
F., two thirds full when connection is
made with the pump. The air boils
| and bubbles. the temperature failing
rapidly under the rapid eyapora tion,
| and in few moments a lump of solid
air about an inch in diameter remains
| in the bottom of the tube. In open air
this block of air ice lasts about fifteen
minutes.
| Natural electricity is thought by NJ
| Berthelot to have much effect on
plants. Experiments, partly on a tower
ninety feet high, leadihm to conclude
that free nitrogen is important to plant
/ life: that atmospheric electricity in
creases the absorption of nitrogen, and
| that vegetables are obtained in higl
places without manure through the
greater tension of the electricity
| A Swiss motor, known as the "Moto,
sacoche'' the invention of Messrs. H
and A. Defaux, of Geneva, appears t.
| be one of the most promising of the
numerous additions offered to the ~
clist's outfit. The motor is of the usua
internal combustion variety fired by
light petroleum oil, and differs from
others in being practically self-con
ltained-cylindeB combustion chamber
batteries, coil. carburetter and fly
wheel, with the various throttle, mix
ture and sparkling levers, being fiXet
within frame of bent tubes havin.
a total width of only three inches. Th'
apparatus can be attached inside tn
ordinary diamond frame in less thar
ten minutes. Only the driving pulley
which is placed on the rear wheel, ant
the ignition switch, affixed to tn
handle bar, are added to the macnin
proper, and the total weight of IL