Pittsburg dispatch. [volume] (Pittsburg [Pa.]) 1880-1923, 1892-03-27

-arert is a cactus and one of its of.
.- has feshier stem and less surface
any other member of the family. In q
z7il and parching atmosphere this will
s plant to get the best foothold and
.rain it with most vigor. And the very
net-.ion which means death to its
Icy rivals assures this bettered stock a
&c 10 multiply its kind.
Is n he vegetable kingdom so in the
= Held OF animal life. Nature has
light 10 provoke the eve to vision:
10 form the ear; air she has employed
develop both wings and lungs; water,
universal carrier, has nodded fn and
e. Darwin, whom no observer of our
lJs exceeded IN acuteness and patience,
hat in thousands of cases the shape
color ot leaf and flower, the form of
and beak, had come about in doing
2 work with the least possible effort in
following the line of greatest profit
Inventors as Conscious Imitaiors.
but a few years since men of con-
uce awakened to the truth that nature
be their chiefest teacher For ages
aad gone on stumbling in the dark, as
a IS not through sheer accident hitting
z new device Of value, and confning
view rather TO what other men had
than extending it to what nature was
around them every day. A change
ONE upon them, and to-day they in
He with conscious aim: How does nature
-ace EGht? How does she group her
together? How does she mass her
How can We initiate her? What, if
..a1ce We NAV follow in them, are the
10 her methods?
cry striking is il, as We look back upon
past, 20 see how much of the loftie.t
could be blind TO what nature held
-- tIetl eyes. Architecture had pro-
ed az the beauty and variety of the
=z orders before it spanned door or win
with an arch. Yet the outline of the
was all the while exhibiting a form
-a coGlL lend the building art new
--rh a. well n grace. Modern archi-
s. and engineers, whether knowingly or
have taken more than one leaf out of
a1oN In rearing their loftiest
1-s they employ cylindrical columns
.. and steel. These columns are always
r. is also are the engine shafts of the
81 steamers, for experience proves that
l# cylinder has the strongest form
given mass OF supporting material
Ee. This Is very much the shape of
mes in ones arm or leg, so that, with
NJ beyond human anatomy, the in
- and architect could long ago have
q hint OF no little value.
lesson of Elastic Cartilage.
-w bone is Joined to bone is scarcely
-s-TUctiye. As they move upon one
ler an elastic cartilage cushions sudden
q and prevents the harm and hurts its
is might Inlet. On the railroad be-
20 Boston and Lowell the ties were at
huge blocks Of granite. Strong and
ie enough they certainly were, but |
lacked elasticity. The locomotives
oars a. they nassed over them were SO
~ shaken that the stone ties had yery |
10 be discarded for wooden ones To |
er case their sharp vibrations powerful |
,rs are fastened beneath cars and en-
S. and TO lessen the jar in starting and !
ping they are provided front and rear
Euge spring buffers OF stoutest steel.
the theodoliJe and the sextant, in GER
printing presses, and in the geometri-
.aa Of the bank note engraver, we find
r and socket joint which permits mi.
motion. The shoulder and hip Joints
ire as free 20 move in anv direction
heir surfaces are perfectly lubrlcated
delicate fluid supplied Just as it is
I'd.
gn pumps were first provided with |
as to direct the current of water hither
Itler the inventor was no doubt very
Z OF his achievement. In the heart
in his breast, in his own veins and
es, were valves engaged in the same
rightly directing the flow of blood.
simpler kind of pumps, which linger
nd there in our farmyards, the action
-v. the stream ebbing and flowing
moment to moment as the arm of the
rises ana falls. Quite as jerky would
a tide OF the blood were not the walls
arteries highly elastic. Their elias
serves the same purpose rs that of
.r u lhe air chamber attached 10 large
TO cqualizc and stead their flow.
lls Eodroau Gun and the Heart.
luination Of the heart brings out the
luls Of its structure, curiousiy paral-
in modern invention. So powerful
lr explosive charges used in the great
or modern warfare that no mere in
b OF thickness in the metal would pre-
heir bursting. To avoid this peril
he object of the ingenious method of
.acture introduced by General Rod
IN this process a current of water |
5 through the core OF the gun metal