The Savannah morning news. (Savannah, Ga.) 1900-current, 1901-01-11
ITEMS OF INTEREST.

/ mends in his annual report the installa-
| ton of wireless telegraph outfits on board
| ships of the navy. After careful study
of the system the bureau is convinced
that its chief value is for use at sea, in
establishing communication between
| ships, and between ships and shore sta
| tions and believes it will be of much
value to the naval service in this con-
nection.
At the Zeiss Optical Works in Jena
there has recently been produced an
artificial spectrum, which may be used
| as test in orthochromatic photography.
| 1t consists of four coiored glass prisms.
| which together form thick plate. There
| is an obtuse-angled yellow prism, which
has on one side a rlght-angled purple
prism, and on the other a blue rhomboi-
! DIAL. Next to this last prism is a pur-
pie prism of rectangular form. The col
ors selected for the prisms correspond
| with the ideal colors for trichromatic
| purposes, and, by suitable combination,
any desired shade can be produced.
Although platnum-rhodium thermo-
couples have been prepared for number
| of years, it is only recently that rhodium
has been obtained in sufficient quantities
| to enable its physical and metalurgical
| character to be studied Rhodium be-
| lOtSS 10 the DldUlluuul group OF metal,
and is sometimes confused with iridium,
| though the latter belongs to a group
| which has a specific gravity of about
| p, while rhodium has d specific gravity
of about r. Neither rhodium nor iridium
| alloys with silver, though they are sol
uble in lead. Silver and PLATINUM, on
| the other hand. alloy readily. Rhodium
| alloys with gold, and also with bismuth,
tin, and antmony.
The electrical industries of Germany
are pleased TO learn that recent explora-
| tons of the Uluguru mountains in Ger
man East Africa have revealed the pres
| ence of deposits of mica. These beds are
| situated west of Dar-es-Salaam, and con-
| tain mica-sheets particularly well adapted
| for electrical purposes. The sheets are
solid, split even, and are able TO endure
the high electric tensions, making the sub
stance useful for insulation This mica
| is said 90 compare favorably with that
| imported from India, Canada and the
! United States. and there should be strong
| demand for the material There are yet
! diftculties in the way OF transportation,
which, however. will be overcome when
the Central Railroad approaches the u
| uguru mountains.
In steriizing milk it is important that
| the temperature should not be made too
| high, as the milk when heated above 70
degrees centigrade loses its flavor and nu-
| tritiVe qualities. On the other hand, the
| heat must be sufficiently intense to killthe
| pathogenic organisms particularly the tu-
| bercle bacillus A temperature of s. de-
| grees cenugrade for twenty minutes is
| believed to destroy this bacillus and
| milk which is pasteurized, or heated to
| 6S degrees centigrade for twenty minutes,
is said to be quite safe, while its flavor
! is practically unchanged. Certain. au-
! thorities claim that tubercuous milk can
| still possess infective power after pasteu-
| rization, but it has been found that the
tubercle bacill suspended in water,
solution of salt, boullon, milk were
| destroyed at so degrees centigrade in from
| fifteen to twenty minutes. If however,
pellicle forms on the milk and en-
| closes any of the tubercle bacilli they
seem to be protected, for they may sus-
tain an hours heating at 60 degrees CEN
tigrade without being destroyed
The acme of perfection in the orange
| kingdom is the navel says the California
| Cultivator. It's praises are sung and its
| merits known all over the world. Cali
| fornia lemons are fast becoming as well
| and favorably known, and only last week
we published a series of analyses show
| ing their superiority over the Mediterra-
| lemon for market are comparative seed
| lessness, thin rind and high pulp. These
| the California lemon possesses in re-
| markable degree. But ii has remained for
| DIR. Woodbridge, the well-knoWn agricuit-
| uidl chemist of Lost Angeles and South
| Pasadena, to succeed in producing a navel
| lemon absolutely seedless and possessing
| the characteristics and advantages of the
! orange after which it is named for he
has named the new lemon California Ma
| val Lemon. Origin? That's another ques-
| ton. We tried to get the doctor to tell
| but he wouldn't. One thing however, he
stated. 1t is no experiment. The fruit
has presented just the same characters
| tics for two years, and he hopes it has
| come to stay.
Hair on the face is not worth very
much from a hygienic standpoint, accord
| ing to Gabriel Provost. In an article
| translated in the Medical Times, he says:
| Scarcely under the form of heavy NOUS
| taches shading the lips can it invoke serv-
| ice by hindering the introduction into the
| lungs of too cold air; and yet it should
| not pride itself 100 much on this. In re-
| turn for less than the greatest neatness
| it is filthy, and physiOlogically il is net
| of microbes. 1t is evident that the inspi-
ration of the air tends to accumulate dust
| there, as it does in a broom. The least
| trace of foods, liquid or solid soils it and
| makes 1t an object of disgust; odors, good
or bad, choose a dwelling place there, and,
! finally, laziness about shaving is the only
| argument to put forth by those who
| praise it. From a archaeological point of
| view il is almost unluckily the receptacle
! of dangerous microbes, to which it serves
! at the same time for a habtation and a
| vehicle. Let US have the courage then to
| declare that we cannot understand how
| anyone can persit in this, least of all the
| physician or the soldier, two existences
| everywhere comparable by their forced
| contact with promiscuous people. The alb
! surd prejudice still remains that the de-
| velopment of the hairy system comedies
| with that of strength. In this case we re-
| fer the fanatics of the beard TO Anto-
| marche, who made the autopsy of Napo-
| leon. The conqueror of Wagram had not
a hair on his breast. He did not have
| besides. one on his hand"
An interesting paper on the connection
| between sun-spots and the weather read
! by Sir Norman Lockyer and DR.. W. s.
Lockyer before the Royal Society of Lon
don has provoked considerable discussion
| among scientists. IT has been stated by
| certain persons in the past that periods
| of economic crises or hard times were
| related to the fluctuations of the sun