Amador ledger. (Jackson, Amador County, Calif.) 1875-19??, 1907-08-23

The irritation which causes the
deposition of pearls appears to be
Varlously produced. In a new report
on the pearl oyster fisheries of Cey-
Ion, Prof. w. A. Herdman states that
some pearls appear tn be formed
around grains of sand, and some of
inferior quality are probably disease
calculi, but most and the best pearls
are deposited around parasitic
worm. Pearly excrescenGes on the
interior of the she'll are due to irri-
tation cansed by boring ANIMALS. Be
sides these there are ~ ampullar
pearls where the nucleus and result
ing pearl lie between the she'll and
the bodyI ~ muscle pearls, formed
around minute oaIcareous concretions
near the insertions of the muscles;
and (3l cyst pearls, formed around
encysted parasites. The artificial in
lection of oysters in Ceylon, which
has been proposed, seems unnecess-
airy, as the parasites are likely to find
all pearl oysters unaided.
The discovery that picIic acid will
at once relieve the pain of burns aud
cause speedy healing was made acct
dentalIy by DR.. Thierry, of the Paris
Charity Ho-pital. Use of picric acid
as an antiseptic impregnated his
hands with the solution. and he
noticed one day that lighted match
dropped on his hand caused no pain
and little later that cauteIizing the
skin by hot wax was unfelt. Expert
ment then showed that the saturated
solution Of picrio acid prevented
bIisters and cured the burns COM
pletely in four or five days.
An ordinary steam locomotive can
draw its own weight up five per
cent grade. The locomotive for the
new Puy de Dome road, Tilted with
the Hanscotte system of adherence
wheels pressing against middle rail,
is expected to take three loaded
trailers up II per cent rise at ~
miles per hour.
The culture in France of the soy
bean, whose products are so important
in the dietary OF the Chinese and
japanese, is being urged by Chinese
in Paris. A PURGE pressed from the
boiled seeds yields both milk and
cheese, thinning with water produc-
ing very good substitute for animal
milk, and coagulating with mineral
salt fitting the material for cheese
making. The cheese is usually eaten
fresh, though it may be preserved by
salting or smoking, first being cook
ed. Three varieties of the cheese are
common in Oriental markets
fermented kind being white, yellow
or gray in color, with a piquant taste
like that of Roquefort; while another
sort is salty and white, likergoat g
milk cheese; and the third is smoky
and resembles Gruyere. The soy
cheese costs about iittieth as much
as animal cheese, while tie nutritIve
value of both this and the vegetable
milk compares very favorabIy with
the ordinary products from the COW.
Experiments on the dikes and sea
walls of Holland have demonstrated
the great value of ferro-concrete tor
giving protection against the inroads
of the sea. by the system of State
Engineer de Muralt, the metal armor-
ing Is secured to wooden piles or
laid upon stable earth, and piers and
groynes are thrown out vertically
from the shore to break up the waves
where the action is especially violent.
On sand downs the concrete is laid
upon straw mating held in place by
the wooden piles and metal armorirg.
The wear of the waves upon the
smooth concrete facing is very slight
where masonry walls are quickly de-
stroyed, and entertainments, sIoping
beaches and downs are protected at
half the cost of any OTTER method.
The new colored wood of a Nor
wegian firm is produced by forcing
the sap from green logs and injecting
dyes. The treated wood has increas-
ed Durability, will not warp, may be
polished in the usual manner, and
most of the coIors are claimed to be
as stable as that of mahogany. The
material is especially suitable for
furniture.
An optimistic view of radlotherapy
is taken by the British Dermatological
Society, which has decided that
Roentgen rays are practically
specific for numerous skin diseases,
curing or beneitting acne, lupus.
eczema, psoriasis, pruIitus, tInea,
and others, including even cancer.
Of eighty cases of epItheIioma involv-
ing the skin only, all were cured,
with no recurrence DIR. Justus
found no recurrence after two years.
and he considers the use of the knife
necessary only ID certain cases favor
able to operation. Vigorous treat
ment of eighteen cases of carcinoma
or true cancer-ettected a cure.
The aluphibIous automobile of NJ.
RoUoiIIiar