Amador ledger., 1908-03-20


Work Cure. Washing Away Of
South Africa. Scarlet Fever dag
nosed by Sound. Spider Vision. -
Fatigue Poison.
The nitrogen absorbing bacilli dis
covered in root nodules twenty years
ago we're derived from arabic soil.
but were attracted to leguminous
plants only, though the variety favor
ing peas differed from that found on
lupins. With the leguminous plant
of its choice each form of micro
organism entered into true symbolic
relationship, absorbing nitrogen from
the air and feeding it to the higher
plant and receiving carbon in return.
In experiments at Kings College,
London, during the last two or three
years, Prof. Bottomley has not only
shown an increase of 80 per cent in
the yield of leguminous plants IN soil
sown with the proper baciIli, but he
has succeeded in producing varieties
of the bacllli for other plants, thus
increasing the yield also of cereals,
roses, cabbages and tomatoes. His
method has consisted in cultivating
several generations of baeilli away
from the leguminous root in an eX-
tract of the new root, the descendants
thus acquiring a taste for the new
food. There seems no reason to
doubt that nitrogen-f bacilli
may be adapted to all green plants,
and the soil may be fertilized without
the nitrates made by chemical and
electrical processes.
The growth of number of success
sive crops of the same plant has been
lately found not only to exhaust the
soil for that plant but to develop an
active poison for it, Steam dIstilla.
ton of "A wheat sick soil yielded a
crystalline substance that is toxic to
wheat, and from a soil exhausted for
detained that is toxic to cowpeas but
not to wheat.
In Mayfield's cave in Indiana, A.
M. Banta has captured 33 species of
flies, two of them new to science,
30 species of other insects, and 81
species of the spider class.
The remarkable "pyrophorous al
Toys" now being made in Treibach,
A,,c frio bou tol 4,
menus with the rare earths of Auer
Won Welsbach, the inventor of the
lncandescent gas-mantle. They con-
tain iron, with such metals of the
rare earths as cerium and lanthanum,
and on being scratched with steel
they produce very brilliant flashes,
with little heat or smoke. The sparks
which may be as large as a mans
hand-aIe sufficiently hot, however,
to ignite finder, indammabIe gases,
alcohol saturated wicks. 1t is sug-
gested that this curious property
gives advantages for many uses, such
as lighting gas-lamps from distance
by friction with steel moved by an
electromagnet igniting explosives at
less risk than from the present full
inmates, yielding flashes from buoys
under Impulse of the waves, military
signaling, and fashlight photography.
When the proportion of iron is about
30 per cent, the slightest touch of
steel yields shower of sparks. The
light varies with the different alloys,
and nickel, cobalt or manganese may
replace the iron in part.
Graduated labor in pure air is the
medical treatment prescl ibed by DR..
M. 5. Paterson, all English physician
for pulmonary tuberculosis, and three
years trial at the Brompton Hospital
Sanatorium have shown great i'm
provement in general health and re-
sisting power. Only vest is permitted
while the temperature is above SO
degrees in the male or 1916 in the
female. After few days of normal
temperature, light work begins, and
is slowly increased-the temperature
being carefully watched through
such grades as % walking from half
a mile to ten miles daily, 60 carry
ing baskets of mould, (3) using "a
small shovel, a. using a large shovel,
90 using pick.aXe, aud 60 using "A
pickaXe SIX hours day.
The rapid water-erosion OF parts of
Cape Colony is attributed chiefly to
burning of vegetation and the start
ing of paths by cattle and wagons.