New-York daily tribune., 1858-02-24


Satnm il not heavier then oork, add Neptune roll.
through space in perpetual night, Heooe the outside
pane,s regarded Untitled by the absepoe OF light
and heat for the higher orders Of hfe.
IScRUsT TIo>s ~ BouERs.- Ianumerable plaOs
have been proposed iJr the prevention OF those in-
erustai ,ns OF which have been patented; but
none Of them have come into universal use New
plans also being continually proposed. From these
circumstances may be inferred that none heretofore
known have been found entirely satisfactory. Recently
Mr.. L. Mc(afeTty OF Pennsylvania has patented a
process for THE purpose which consists of intro
ducng into boiler OF 100 horse power hall Pound OF
black gum oat.chu. With this quantity the water be-
comes coor"d Ike pale brandy. This co.of is man
tanned by adding gum, from time to time, during
the week. lie alleges that 10 lOrg a. tbe color - MAN.
taDcd incru5aiion WIZ form; also, that bohers
already mcrustcd viii be rendered clean by ts ure, az
tbe gum gradually dccompOse6 It, and deposits IL 10 q
thin mud at the bottom, whence 1t can be reediiy
blown out. Another plan hes been proposed ny Mr.
ID. X CLARK, before the London INSTITUTION OF ClVh
Engineers. He proposes that the water used N loco
motive boilers should all be well nhered' or that DC
ounJ too EXPENSIVE then that rain water only should
he used He asserts that hard waer Is destructive to
boilers and reduces their durability especially of the
Gf
patented by. Mr.. McCaferty is infinitely simpler and
cheaper and If found in practice 10 be efiectus, will
probably come into general ne, if proper pains be
taken to advertise the world of the fact.
SrLr-ISpIcAroR BEEHWEs.-The careful bee far
cer has long desired TO possess some method OF
urpg the daily increase decrease in the weight of his
hive. 4 recent German newspaper states that bee
grow there took the trouble to weigh of hs hives
twice day-before the bees lief. in the morning and
after their return at highland thus he determined the
nightly loss by consumption and evaporation. These
observations were continued from May to August .
period of 81 days, aud the results very interest
ipg. On the 5th of May the hive weighed 6I pounds;
lost two swarms weighing - pounds, yet on August
9 it weighed 1907 pounds. There was no increase in
weight from June % to July 81 except OF pound Oh
one day and on another, and from July Il to August
the whole increase was only pounds. The work o.
each day is infinitely recorded, and the results 80 to
prove that the beekeeper should have some means Of
ascertaipng the weight of his hives daily throughout
the season. method Of doing this has been invented
by Dir. Shirley IIibbard of Tottenham, England. 1t
consists OF a turned pillar made after the fashion of
telescope, working like piston in brass or iron cyl
indcr. Beneah the pillar is spiral spring, on which
the pillar rests. Two slots down The side front
Of the cylinder and between them index is marked
finger is attached to the base of the pillar and the
hive adjusted top OF the latter that as presses
down on the spring the finger marks the gross weight
of the whole. thumb-screw passes through the cyl
inder, and by pressing against the pillar holds n
fixed position whenever it may be desirable. The
whole affair exceedingly simple, and mus, be readily
understood To the intelligent bee. keeper Will be
very acceptable acquisition.
ELEcrRoTYPNG.This important and beautiful srt
has paused In ts progress TO perfection since its
discovery was first announced to the scientific world.
No less than three processes Of electrotypng have
been discovered in France during the last half year.
One OF these is that Of Messrs. Chriso and Bouiet,
intended TO give strength to the finished article 1t is
accomplished by leaving al opening in the back of the
thin electrotype shell through which opening numer-
Gus small pieces Of brass introduced which arethen
fused by means Of oXyhydrogen blast and thus the
melted mass is dused over the whole interior surface
of the copper she'll imparng to degre, Of strength
equal to iron. Another consists in the subtnuton OF
platinum for copper, and Of making rough skeleton
figure resembling the cast INTENDED 20 be initiated and
by this the Inventor asserts lat lie can produce
busts statues and other works &C art in fun relief by
single operation third process ia for cOaing iron
with copper 70 any thickness require avoiding the Use
of the cyanide bath, medium which IL not only very
dangerous, but quite expensive. In addition to these
reported improvements in the art, the French chemist
are experimenting on the availability OF the new meta
aluminium for electrotype purposes. Ihls briliah
metal has not yet been produced with sufficient cheap
ness to compete with silver it cannot be sold for less
than FIVE to six dollars per ounce But Its specihc
gravity is 80 much less than silver, that an ounce OF
aluminium foil will many times the surface that
would be covered by the same weight OF silver ion.
The loss in price is therefore made up by the gam IN
Hchness curiosity however in the way OF electro
typing has recently been exhibited at Chicago, IN the
shape of apple, measuring sixteen inches III crcum-
ference, which was enveloped in thin film of copper
by Mr.. LYMAN Of the Chicago Type Foundry. 1t
presented the appearance of magnificent golden bau.
Perhaps the most remarkable tn
umph achieved in this beautiful art Is that which has
recently been attained by Paul Pfetsch, OF Vienna,
wLo fret successfully applied it TO the production OF
eteraved pates. This discovery has gone on to per-
(econ in the hands of It's originator, and has a. last
reached this country Results have been accomplished
in Philadelphia which are extremely encouraging and
which prove that an engraved plate may be produced
in a single day which ordinarily occupies many months
in completing, and that too, by hands to which years
of practice arc required. la accuracy oil imitation,
dolicacy OF execution and General truthfulnes the
new process produces pictures which oustrp the iml-
tativc power of human skill. 1t is so cheap and simple
that revolution in the art Of engraving must be the
consequence. It's superior cheapncrs will increase the
prouseness Of illustration nduged in at great cost
by publishers of books and magazines 1t will be ap-
piled on large scale in illustrating Fremonts Explo-
rations in California in course Of republication 10y
Childs & Peterson of Philadelphia. The designs will
be photographed from the living object directly on the
wood. COL Frcmont's portrait will be deposited i'm