The progressive farmer. [volume] (Winston, N.C.) 1886-1904, 1891-04-14

The Amos of YezO are not likely to
die out for some time, as they increased
from IA, 275 in 1872 to II, O62 in 1888.
What is supposed to be a new form
of carbon has lately been obtained by
passing cyanOgen through a red-hOt
porcelain tube containing some gas
carbon sprinkled over with powdered
cryolite. The carbon separates in a
bulky mass of very slender flaments,
which can be compressed into a mass
resembling graphite.
PREHISTORIC Man AND APES ON THE
COLUNBIA.-AmOng the most remark
able works of prehistoric man yet
found in America n three rude but
llfellke heads Of apes carved on basalt.
These unique relics were picked up on
the Columbia River, and are owned by
Mr.. James Terry, Mr.; T. Condor and
Prof. 0. @. Marsh. Mr.. Terry believes
that either the animals which these
carvings represent once existed in the
| Columbia Valley, orthat, nthe remote
past, a migration of natives from
some region containing these monkeys
reached this valley and left one of the
vivid impressions of their former sur
rOundings in these imperishable sculp-
lures, Mr.. A. R. Wallace regards the
latter alternative as highly improbable,
and is inclined professionally to accept
the former.
STEREOsCOPIC PROJECTIONs.-An old
idea of D'Almeida, a french physicist,
by which images in natural relief may
be shown by the stereopticon, is just
being successfully carried out by M.
MOlteni. If two images-One repre-
senting that of the object as it would
be seen by the right eye and the other
that which the left eye would see-be
supposed upon the screen, both com
bine in one fiat picture. To make each
eye e the one of the two images
proper to it, D'Almeida conceived the
ingenious plan of placing green glass
having the perspective of the right
eye, and a red glass in front of the
other image. AS red and green are
| complementary colors, the image upon
| the screen is still white, and changed
only in being a little less brilliantly
lighted. But If the spectator now places
a green glass before his right eye and
a red one before his left, each eye will
see only the image responding to the
~cOloratlOn chosen, or precisely the one
which has the proper perspective, and
the relief appears Immediately. The
effect is very striking and beautiful
With the naked eye a diffused image
is een upon the screen, but with the
pair of special eyeglasses the relief
appears as distinctly as in the best
stereoscOpe.
Our NEARNESS TO THE GLACIAL
EPOCH.-Did you ever reflect, proud
! 0~a 11n0o %ho on~~or 11-o14I &c Az
conditions that make human life posi-
BILE? A little more heat and man and
his works would wither into dust, a
little more cold and the SHOWS of per
petual winter would be heaped high
above the mightiest of the earth's cities.
Mr.. G. Harding tells the Royal MeteorO-
logical Society, London, that the frost
of the past winter has been more pro,
lOnged than any previous one during
the last hundred years. From Nov.
Is to Jan. 90, a period of SO days, the
mean temperature of the southeast of
England was 2 deg. below freezing
point, or 10 deg. lower thanthe average,
although in the extreme north of Scot
land the cold was less than 1 deg.
greater than the average. This most
remarkable period of frost leads Prof.
T. G.. BOnney to inquire what pema-
nent fall of temperature would restore
the glacial period. He concludes that
a lowering of the mean by only IS deg.
would again cover the British Isles
and the northern United States with a
sheet of ice, and that beyond the St.
Lawrence the fall need be no more
than - or ID dogs. An exchange of
the present climates of the correspond
ing ATTITUDES of the northern and south
ern hemispheres would bring England
| Of lnnnt urEAhin tho frnnon zOno