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Collection: Books and Periodicals > Mining & Scientific Press
Volume 12 (1866) (428 pages)

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Page: of 428

The Mining and Scientific Press,
Experiments fo for Children,
Place a conimon iron Japaued tea-tray on a
ary, clean drinking-glass, or on two or more of
them ; then take a ‘sheet of paper aud bold it
to the fire until it becomes tborougbly dried
bnt not scorebed. (Recollect that paper is alWays more or less moist from contact witb the
atmospbere; hence the uecessity fur drying).
Now lay tbe paper on the table, and take a
Piece of Indin rabber and pass it lightly across
tbe same from left to right, as if you were rubhiug out pencil marks. Let it be drawn ecross
about a dozen times, beginning at the top of
tbe sbeet und making each stroke alittle lower
down, until you hare passed the rahber once
or twice over the entire surface.
Now take up the paper by two corners, nud
hring it over tbe tray, and on dropping it you
will see it fall almost like a sheet of iron. Supposing you linve cone everytbing right up to
this point; if you now place the eud of one
of your fingers near the under surface of the
tray, you will feel n sensible electric shuck.
Now pluce a needle on the tray, pith its
point projecting outwards, remove the pnper,
aud a Star sign of negative elicitricity will be
seen, if tbe room is dark enongh ; retarn tbe
paper and the positive drzh sign will appear.
This arrangement will form, in fact, a very goud
electraphorus—an justrumeut for exciting elec.
tricity. tis sometimes sufficiently powerful
to give a spark an in h long, strong enough to
set fire to light combustible bodies, aud may
he made to exhibit, on a small scale, most of
tbe ordinary electrical phenomena, not requiring coated surfaces.
wa yery interesting class of experimeuts muy
he made wita it in the following manner:
Take four or six tnmblers, place them hottom
upwards on tbe floor, lay a hook upon them ;
then let a person stand upon the hook, and he
will be in what is called an tnszlated position
—tbat is he will be so conditioned that the
electricity which may be conveyed iuto his
body will nut readily passoff. Wben standing
in tbe position described, if be takes the tray,
charged as we hare also deseribed. froin és insulated position on the glasses, the paper will still
adbere to it although he may hold it vertically,
or banging by his side; nod while so holding
it, sparks ‘of electricity may be drawn from any
part of his person by placing the end of your
finger near bim ; or he may draw sparks Irom
otber persons as the case may be. Under peenliarly favorable circumstances he may light
the gas hy holding his finger to the buroer as
you “sould a mntei} He may eveu light it dy
holding a piece of ice to it/ These experiments are easily performed, perfectly sale,
amusing and instructive, especially when the
pareuts or teachers assist in them and explain
their natnre more fully than we have done.
How to Burs Irox.—Take a file and rasp
off balf an ounce of iron; then put ont
your gas lights, if you hnve tbem. and ligbt a
solitary candle. Take up a pincb of the filings
and hold them just ahove the flame of the candle and gradnally drop tbem. Yon will find
that they take fire immediately on coming in
contact with the blaze, ond burn oiost bril
liantty; each particle buruiog like a star, and
the whole preseuting a very pretty example of
niuiature breworks. ‘he principle is just the
same as that upon which the finer you split up
your wood the uivure readily it will buru. You
cau burn up tbe entire poker iu a short time, il
you will ouly reduce it to filings.
Size of THR West.—The * La Crosse Demoerat” says: Illiuois would make forty such
States as Rhode Islaud, and Minnesota sixty.
Missouri is larger tban all New Engl nd. Obio
exceeds either Ireland or Scotland, or Portagal, and equals Belgium, Scotland and SwitzerTand. Missouri is more than half as large as
ltaly, and larger thau Denmark, Holland,
Belgium aud Switzerlind. Missouri and Illi.
Dois are Jurger than England, Soctland, Ireland
and Wales.
Tar First KNowy Save or Lann. of which
we have any record, is tbus recorded iu the
Bible :—~ Ephrou, the sou of Zobar, nade sure
nato Abraliam, fora possession, his field which
was iu Machpelah, which was before Mamre,
the field and cave which was thereiu, aud all
the trees that were in the field, that were in all
the borders round about.” Onr yonng readers
may find ita useful exercise to hunt up the
hook, chapter aud verse where it occurs.
Italiau inveutor named Casolari has
Pais produced n mechaaical press, hy which.
itis said.a speech may be printed while it is
being delivered. and be all ready for publication at tbe time the speaker leaves the platform. A public trial of it recently touk place
at Modeuz, when bve stauzas of Duute’s ereat
poem, together with a learued commentary on
the same. were read and printed trou the reuding in lines containing eacb thirty letters, in
the spuce of nine seconds.
Ir takes hut a moment to clond a lovely
morning. und a slight misdeeé may mar the
happiuess of a lifetine.
PROSPECTUS
OF THE
California Youths’ Companion,
PUBLISHED EVERY FRIDAY,
BY DEWEY « cCo.,
Of the Mining and Scientific Press, Patent Agents,
Book and Job Printing Office, 505 Clay
Street, corner of Sansome, San
Francisco.
SUBSCRIPTION PRICE :
For One Year, $2.50; One Quarter (12 weeks),
75 Cents. Liberal discunnts will be made to
Clubs in the Interior, and to Classes in this city.
In the management of the Coxreanton, we shall
endeavor to express ourselves pleasantly, in
simple language, and in a manner perfectly comprehensive to children. We shall aim to catourage
them to become good, wise, and happy.
We shall give, from time to time, illustrations,
calculated to attract their attention, and to impress
npon their minds ideas not otherwise easily understood—in short we shall use the engraver’s beantifal art to light np the pathway of progress for children.”
Stories, when published, will be short, calculated
to instruct as well as amuse; and we shall endeavor to make it a point that such contrihutiors
and selections shall always be of a high moral
character.
Humorons sketches and amnsing incidents will
occasionaly find an appropriate place to spice our
columns. ’
We shall hare an especial care to exclnde all anchaste or improper paragraphs and expressions,
admitting nothing into the colnmns bnt snch as
shall have a tendency to improve and eunoble the
youthfnl mind.
We shail endeavor to so hlend rational amnsement with instrnction, as to render nll our efforts
in that directiou, pleasing and desirable, rather than
dnl and nninteresting.
‘We have in course of preparation a set of skeleton engravings—some two hundred in number—
'shich we propose to make a featnre in the paper
orthe present year. These engravings are designed
to illustrate a healthful class of exercises.
Friends pleased with our efforts to provide for
the school children of California a first-class yonths’
ptper, are earnestly requested to assist ns in the
undertaking, hy aiding in its cirenlation, and calling
the attention of their neighbors to the commendSneh favors will be
Send for
specimen numbers, which will he fnrnished free.
DEWEY & CO., Publishers.
San Francisco, Feb. 23d, 1866.
able features of our paper.
most fully appreciated by the pnblishers.
ReEseEct oLpD Ace.—Bow low the head. my
young frieud. Do reverence to the old man.
He was ouce young and fuir like yon; hot
the vicissitudes of life hare silvered tbe hair,
and changed the round, merry face to the
worn visuge before you.
Once that heart beat with incidents co-equal
to any you have ever felt; but his nspirations
have ‘been crushed by disappoiutment, as yours
may possibly be.
Quce that form moved proudly through tbe
gay scenes of life; now the hand of Tie that
Withers tbe flowers of yesterday has warped .
the figure and destroyed the noble carriage.
Once, at your age. he possessed the thouchts
that pass through 9 your brain; now wishing to
accomplish deeds worthy of a nook in fame ; :
anon imagiuing life a dream, that the sooner
awoke lrum the better. ‘Tbe time to awake is
very near at hand. yet his eye kindles at noble
deeds of daring. and the hand makes a firmer
erasp of the staff.
Bow low the head, my yonng friend, as you,
in your old age, would be reverenced.
Ran not after blessings; only walk in the
commandments of God, aud blessiugs shall roa
alter you, pursne and overtake you.
Worta Remensertne.—The whole-nse of a
hat is prohably not generally known—it is ol’
more use than covering tbe head. If, whena
person fell overboard, he hnd the presence of
mind to instantly take off his hat, and hold the
hrim of it to his chin, so tbnt tbe hollow would
be npward, it wonld keep him ahove the water
us long as he could hold it in that position.
This has heen tried, aud actually fonud correct.
Anger may glance into the breast of a wise
man. hut it rests ouly in the bosom of fools.
City College Laboratories,
Southeast Cor. Stockton and Geary sta.
Practical and Analytical Chemistry
and Metallurgy.
THOMAS PRICE,
Professor of Chemistry,
(Formerly of the Normal College, Swansea,)
LL GIVE PRACTICAL INSTRUCTIONS IN QUALItative and Qoantitative Analisis and Assaying The
eourse qualifies students for the apnlcanon, ot Chemisiry
to METALLURGY, MANUFACTURING ARP, and MINING
PURPOSES
PHARMACEUTICAL and TECH ICAL CHEMISTRY,
such as is required by Medical aud Pharmaccatical Studepts, be taught to such students as may requircit,
Conrse of Gencrn! Chemistry.
Fyening Lectures will he delivered every Tuesday. at
half-past seven o'clock, P. M. inthe Philosophieai Hall ot
the College, without extra charge to the siudcnts in the Institution.
Ou and after the 14th of February, the Lahoratiries yay
he open evety das. except Sungase) from$ a. M.to5 P.M
For further particulars, addr
REV. P. ¥. VEEDER,
Principal of the City Conese.
Gye Or at 406 California Strect.
SANTA CLARA COLLEGE,S. J.,
SANTA CLARA, CAL.
Conducted by the Fathers of the Soclety of
Jesus,
The FIFTEENTH ANNUAL SESSION of this College will
commence on
Mronday, August 28th, 1865.
TERMS—Tuiltion m the Classical and Scicntlfic Pate
ment; Boarding and Lodging; Washing and \ tend.
ing of articles washed; School Stationery; Medical
Aticndance and Medicine, f ligh ths, et
per scssion of ten months.
For further Information anh gatalonnes apply to the
President of the College, or_to A Maraschi, St. Iguaony i polled Market strect, San aac:
REY. A. MASNATA, S. J., President.
SACRAMENTO SEDEVARY.
BOABDING SCHOOL
FOR YOUNG LADIES,
Tenth Street, between F and G.
Session commenccd Jannary 8, 1866.
MR. AND MES. HERMON PERRY,
Felze Prinelpals,
Benicia College.
AE TWENTY-SECON O SESSION HAS JUST OPENED.
Pupils reccived at apy time.
The In-troctiou is divuied lnto three
tary course; the Enslish, or Scieutific
dinary College Course.
Pupils generally, and especially those in the Preparatory
Departments, board ae the Institauen, under the dircct
chorse of the T
for Tarther fitoea ven) send tor Circular.
v1 2-3m C.d. FLATT, Privelpal.
parts—The ElemcnCourse; and the orANNUAL REPORT
—OF THE~
Pacific Insurance Company.
SN COMPLIANCE WITH THE ACT OF THE LEGISLAfare of the State or Caliiormia, entitled “An Act culcerniug Vorporations,” ‘ passed April 2. lod, the Pacific io
surance CuMnany ot Sau Francisco Ynukes the following
Auowal Report:
—The amount of ae Biche Sars ee this Sap ve
sEvES HUNDRED
ae paid in (GOLD a
1L—The amount_of the Assets a RTA COS nat
FIVTY-UNE THOUSAND, FOUR HON AND TWEN.TY DULLARS ANO THIRTY-SEVEN CENTS. 31,051,420.37
IIL-—The Company has NO DEBTS
1¥.—The amount ot insurance cheng panel & the year,
ae which remained in force Deceinher 3
ire.
1SbS7
Y¥.—This Com:
uz: BUILOINGS, HOUSEHOLD ge
CHANDISE. RENTS, LEASEHOLDS, © ESSELS 1N PORT
AND TGELR CARGO and a PERSUNAL PROPa AOAINST toss, OR DAMAGE BY FIRE.
s0.on CARGOES, TREASCRES COMMISSIONS, PROFirs and WAS RISKS, and ON “SEL MARINE AND INote hee RISES, TO AND FROM ALL PORTS
YL—This Cainpany wil take on any FIRST-CLASS RISK
not to exceed S75.0H (the limit fixed by law), and an all
lafcc risks Will reinsure to an extent sae With PRUDESCE in other BES eS CONFAN]
HUN ARS eS iene
LsTON, Sceretary.
any Insnres ee the Gees risks,
MERSan Francisco, January 19 is
Wilham Alvora, Ss. ME Wilsou. G W. Bell,
Alex. Weill, x. Uheeseman, Chas. Mayne,
Abin. Seligman, Wm Hoeoncr, Lloyd Tevis,
Anson G. Sules, Johu B. Newton, T.L. Barker,
Johu G. Bray, Beye rdMarun, las. De Fremery.
aA. Hayward, . Mills, Wm. sherman,
We. icy ra Ho aetiaon, John O. Earl,
C. Mexer. Alired Borel, L. B. Benchley,
: . J. Oliver, s Heller,” G T. Lawton,
Aipheus Bull, am Scholle, E. L. Goldstein,
W. C. Ralston, Louis McLane, Moses Ellis.
ee Wightmim, Quiver. Eldridg soy
L. Sachs, A. B. Forbes,
Prodcnen Bilings, J. G. Kelle?
Statc of Califorma, C.ty and County of San Francisco, ss,
Ou this uimetccnth day of January, A D. one thousund
eight bnudred aud 23 5 persenally appeared before
P L. Weaver,
David Stern.
me, HS. Houlans, a ty Public, in and fur the sald
City and ROUD aud th: 1 Tesiding. duly commissconed
and sworn, . . Ralstau, who, being duly aworn, cid depose
and say thathe is the Seeretary ot the Paciii¢ Insurauce
Compauy, and thatthe stalemebts contained in the roregoing Repart ot the Pacific Insurauee Company are true,
j tall aud correct. . RALSTON.
Sworn and sahseribed to ao me, this 191b day of Jan5. HOMANS, Notary Public. uury, A. D. 1800.
dvi2-3m
1852 186
ANEW VOLUME.
Fourtcenth Year of Pubiication,
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Miss BRADDON’S Greatest Sensation Story published
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RUPERT GODWIN;
=
Secret of Wiimindon
A NOVEL,
By Miss M. E. Braddon,
Author of “Lady Audley’s Secret,’ “Tbe Outcasts,’”
“ The Doctor’s Wife,” ‘Three Times Dead,” etec.,
The Hull.
—1;—_.
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