The weekly messenger., 1889-11-02
SCIENTIFIC SCRAPS

wooden ones by the white ants.
AT the end of five weeks typhoid
bacilli may reach depth of 16 to 20
| inches below the earth's surface.
The role assigned by Pasteur to earth
worms of bringing bacteria to the sur
face has received support from recent
observations Of Bollinger.
The light chloric chromium elements
used for propelling small vessels are
made to weigh only half as much as ac-
cumulators usel for the same purpose.
Tie Cape de Ia IIove lighthouse, in
France, is being lighted cXpcrimentally
| by the current from accumulators kept
charged by two dynamos driven by
windmill.
Professor IIcnscn, with a dcep-sea cx-
| ploration party, has sailed from Kiel for
the Greenland coast, where series of
| submarine soundings and investigations
will be carried out.
! Experiments in welding wire rope by
the electrical process show that the
strength Of the finished welding is
] within eighteen per cent. Of the normal
/ strength of the cable.
Pieces of rock crystal heated in
platinum tube and dropped into water
/ fly all to pieces but a drop of melted
! crystal if allowed TO fall into water then
though there is a grea. commotion, it
does not break, but remains clear.
Machinery has been patented for the
purpose of making ship boats from a
single sheet of steel. They will be of
various dimensions. 1t is obvious that
there must be great economy in this
mode of making boats in assorted
sizes.
A process has been invented by means
of which photographs can be printed
|
out dependence on sun or light. They
are said to be of the first quality. That
of course would make photographs much
cheaper.
The practical results of the applica-
ton Of electricity to tempcring steel are
sail to be very satisfactory, both in re-
| gard TO the cos. and also uniformity Of
the product, as.well as its application
to tcmpering lower grades Of steel into
good spring steel.
An English inventor lays claim to an
electric railway lamp-not controlled by
clockwork-which is lighted By the
dropping of penny into the apparatus,
and continues to shine for a period of
from two minutes to several hours, ac-
cording to adjustment.
An elaborate article on the cost of
steam and water power, based on actual
work at wooden mill on the Merrimac
River, may be condensed into the state
ment that the steam power gave total
cost per horse power of $3.50, against
SO. q for the water power.
Dundee, Scotland. has become the
seat of new industry-thc making end
dycing of floor cloth at a very cheap
rate by means of German invention.
Works are to be started at once and
large number of unemployed people are
eagerly looking forward to i.
In the machine hall of the Paris Ex-
position is a casting Weighing 10 TONS
/ This piece de foundcric i5 not intended
to serve any useful purpose, but merely
intended to show what can be accom-
| pli,hcd b. pattern makers, moder and
founder. ~ regards intricacy of de-
tail, it has never been surpassed.
Now that consumption is regarded as
contagious disease, people are begin
ming 10 ask how it Is to dc prevented.
DR. Comet Of Berlin strongly advises
that phtA.,icl, patient, should use their
own spoon. G,g,,cs, etc, and should
avoid kissing thor friends. If death
/ occurs, IT, room occupied b. the dead
( person should BE- Iubbej with new
/ brad, and ri. .u.ai.u-c. b-dIing, etc,