, 1873-06-01

fearless OF the face OF man, loyal to the DIVINE
will, pure in love to our neighbor, that this, ou1
dear land, may not only light the fires Of civil
liberty all over the world, but may carry the
torch Of salvation, and the peace, and purity,
and love OF Jesus Christ, to every nation, and
into every soul.
THE FALLS OF NIAGARA.
Prof. Tynda1I ON Their Genesis and
proxtmatc Destiny.
| From Recent Lecture by Prof. Iundau in England
| We have now to consider the genesis and prox-
innate destiny Of the Falls of Niagara. We may
| open cur way to this subject by few prelimi-
nary remarks upon erosion. Time and intensity
| are the main factors OF geologic change, and
| they are in certain sense convertible. A feeble
force acting through long periods, and an in
tense force acting through short ones, may pro-
duce approximately the same results. To DR..
! Hooker have been indebted for some eamplea
Of stones. tho first examples Of which were
picked up by hlr. Hackworth on the shores OF
Lyel's Bay, near Wellington, in New Zenland.
They have been described by Mr.. Travers in the
Transactions Of the New Zealand Institute. I'm
acquainted with their origin, you would certainly
! ascrlbe their forms to human workmanship They
resemble flint knives and spear-heads being
@ @ppa4oA14y e.use1ou ou 1u.o lac1s WIZ % LUIGI
a1sent'on TO symmetry as II q TOOL guided oy hu-
man intelligence bad passed over them. But no
human instrument has been brought to bear up
On these stones. They have been wrought into
- esoa. 1A'o ooau "-ou6n1 ,n1.
.1eu -, p 1esen' enapo os LILO "lno-oIo"u sano Oh
Lyens Bay. I"o W1nos are domlnant here, and
they in succession urged tho sand against oppo-
site sides Of the stone every little PARTICLE of
sand ch;nna3 oro,, ia ;,,,,,;tas;n,,1 III - ato
in
anu III tne enc scu1ptured these singular 1or1ns.
The Sphinx Of Egypt is nearly covered up by
the sand Of the desert, The neck of the Sphinx
is partly cnt aeross. mt ns nm assnred bv Mr..
Hnrlav hv ord;nar vsa+har;,<, hrt t,- ~. arca.
~ "sNe, z',A Wv ~ .No o1oe-
me actlon u 'he me sana p'o"n agalnst IT, In
these cases nature furnishes us with hints which
may be taken advantage Of in art; and this
action OF sand las been recently turned to ex-
traordlnary account in the United States. When
IN Boston vas taken BY hr. Josiah Quincy to
! see the action Of the sand-blast A Kind Of
hopper containing fine silicious sand was con-
! nected with reservoir OF compressed air, the
pressure beng variable ut pleasure. The hop
per ended IN long slit, from which the sand
ths s md as9 ., glass Vas paeed q
came came out perfectly dePohshed, with bright
9paleseenG GUNNER sucn as could only be PRO-
uueeo ~ me most cale1nt grinding. Every lit
tle PaIElcle or sand urged against the glass; hav-
inact 5 act forms3 the1a ttt,o On "; 5ne a Po'nt OF
ponsneo nsu sar1aee consisting OF 1nnumerablo
nono@s on tms description. But this
nas t :, not AZ. ~ protecting certain portions
If ane aariraa nu ING @ qgu1es sna
saacet1 VI any required 1orh could be etched
upon apo1n Tue glass. !ne ngares OF open lron-work
coulu pc tnus COPIED while wire gauze placed
NY - tue slass Ploauceo feticuated pattern
ron to seteT no NO snen 90
fnast 1aca con,5 10 th,,. ne pas5orns OF ne
iace coulu oe mus reproduced the deli
49, neass VI tne iace 1851 onerng sut-
'11uI ~ ntoteo9lou.
a;1,a MI s1neg na snscts ~ 4 nave oeen OBTAINED with
bv nv aasst.nt ~ ' fat nau9.piass oevlsed TOT me
~ ~ ~ t aaautan'i traction OF minute suthces
~ .,e e'ea uRon glaas beautiful lace pattern.
49, - ~ qo ouoa1aneo may oe employed to
ebec1s ~ ~ ~ 6iaSs. ~ nneoaIe!y olnuslng the
cai1v dsetron ta 1ona SUN suostaneeg pfaes1
can boar without ;nconvan;enppo po"ef. in1 nano
which rron15 -,1,1o.;Hs 1saa eano-sno"ef
IN iass t1itp g!ass. Eteh1nee executed
woriaJ ~ - Aua OF hk are accurately
certain 1in;ts tha I b,Eaae t In 1acs within
- ~ Ine nalaeT tne surface the greater
tha aanJ aban1d I enn 10 ID not necessary that
two: cornndTm ~ Tor a1sen, n1uot S!os.anGe o1 !he
Than onsr+1 all, n,,e.t vxatP.o. ~ nucn naFuer
deno1is1, hn} oct,s11 a,n. W. eana San nos only
plata Of cornndnm' Eav r,aao LUZ 1oa3, shaoagn ~
fFahad hn ~ ;,a1.a - Heay glasH may DO oepol-
this caso hr,iein - ta ,e e,sao sao' Inc grams IN
time to atten and }nr ~ s'ass before .hey nave
And here in naasno %. 1ne-- eutsy mtu neat.
or two apparentlv unraiotad 3,cta no ouues 9ne
YOU turn On. At Tia ioper na-t ~ o. nupposlng
which is fed bv nine rom c;starr t ~. coch
OF the house, thu co1nmn ~ 49,. as a. LUG tqP
cistern downward. is set in motion ~ ,t4m t,, ane
OF the cock, this motion il stonnaa ~ .1lmns ,nns
the turnnr or ;a verr sr1da - s.oppea; ana when
strong nav be bnrst hv tha ;1+ers ere P'pe, not
the wster. Dy distrhnt;rf1 tha tnrnnp impact or
cock over half q sccond NJ +;n,o ~ nh y ne
Danger of ,11nt,1re nav Ia ar+;ro1 tue snocR ano
haTo hero IN example Of the concentrat;o ue4 ne
energy in time Tha a,nd.h1ast lac eGIGeatlon ;na OF
Of enerpv IN s,,1ce Tta st; LUG
flint and steal il A. Go..e g. ne acslon
cro. The l,aat reouirad to orensrot a1 ~ sano p1n
iutense. and the mechs ot;n1" ene npalh Is
ate mus n sa ba e3op t no'ng moder-
concentTatcdV - 1h;S oonooat W. ~ sne nignest degree
[ho co1jiaion of 1,ard GENERALIZATION shst 10 secured ~
uot eupnlv TIN n1sc. ~ 1a 1 cc1spar VIII
3f steel in the uroincrion ~ fra - aJ P:seo
With the softer an1'atanrea " H. n1e py collision