, 1870-10-23
Prof. ~ ucafI An sllc ..t.rroHct

In rhe a:ruosr here We have rarti.I.., y ;.,,
dtfS 10th the naicEo-ccre And TIE ha!a,se,
which do not darkcu the s1r, end wLirh rxi-t,
nevertheless. III nuliitndes sufficient to re-
duce the iusigEiteaAce the Irsa.litisl Ly.er-
lolu zeGart ing tho sands upun tine seasl,ore.
some Of us fnr1a An i.aaequ.te cstiu,a-e Of
tile distance NLIc! sep. rates the n,isrosco1,is
irnG tho molecular limit, aud. as coasa-
N:tncc, sometimes employ ! phra-eo!oGy
wticl, Is calculated to mix}cal. Whop, fur ex-
arnr1e. the coDtelt- Of 4 cell are described AZ
IeItecf1y homogeneous, al ahablu:tlr stree
tuEeless, because the MICROSCOPIC fills tu dis
tn Ens b any structure. then thiuk TIE a,ie1c-
sscrc teeiHs 10 EtsY I ruis:1lievou, part. A
hstIs Consideration will make it pl.in to all of
you tl!at ahe microscope can hive uo voice
in the real question Of germ e:rue,u1e.
DISTILLED wa CT Is u,c:r perfec.ly llemoseurpu-
tan tie contents Of any pJsrI.la prsaci.
Es7r'. Eh1t causes the l4ui4 TO cbaAe 10
cenfrcct !. tl4i'sg-tieht degrees Fahrenheit,
e:,'.r:n:al rsostss Of Which the nlielosc sp,
c,r t.ke no Ieie. nor in it likely - do so l,y
ary ctLcc'val'1e Extension of lis ppxe;s,
I!scc this dist1I1fd water III th.. iieIt Of aa
e!ectzt~nsGnet. AID bring ! u,icrorsope ~
t1aE Mon It. viii any chang. bs observed
l'cEe AID s1ill ttoftuud and complies charges
Lave n:cu,Ted. Flr-s Ut all, TIC parlc!e. Of
water Al c Iel uered diauaaxnctIcally polar ard.
rteordly. in virtue OF the ss.ncsnsa iraaresse.t
niHn II y me masnstse strait of its
molecules. tile !ilu!t twists raw 1T li..t! II,
a fashion rerr~etly determin1se both ~
to siE3nlst< alnf direction. It wuull H.,
| lrErat rs.ly interesting to toth WA anil
| 1rr II ere here present who has broat.,. HI.
t,'t}lAE: Imagination TO bear upon this .s,h-
jet. ct0!d make US zee AZ he see. th. en-
| :1e'ed molecular Processes involved in the
rct.'icE Ct tue plane vt polarization l7v N *
tttie Il rec While dezhu, with tins >ll,s;i II,
lie lived N Ho1ii ut nat:tr as7n OF ,n,fto;..
70 which ts-c Ha'c,.sctrc has no pss= r,tt, All
! in ufit:s it can :.r TO all. Il,e c1-,,, in
| vii Il rimllar coz: :ions hell arc +ir,-Iy uua,-
het.css. Hate IL diamond, the arnstbys,.
and re roEa''ess other crystals, formed in
tlr laacEas' res Of natate a:a.l of r,an. no
s1t*c:Nre: AEeurtdly ihey have. but what
eau the microscope make Ut it, SstSInc
II csnnct he 100 distinctly borne in mind that
between the nie1o.c cope limit an,i tie tr,,a
r.olt CT lar limit theIc IL rotm fas iniii.ite
Vprnlutstious aud combinations. II i, in
thls rcg'on that the poles VI the
attHs arc arranged. that tendency il given Il.
their Fowsrr, 70 that When these rnlt- amt
powers bava :rce action anil proper rt,tnui,,-
in eHstatle Environment. they determine
| firat th.. germ ait stteEwA1tl tile cam lete
| oFSaEtsm. Ih~ fIss n.arsLslinS Of iI.s .ton4
| on which al subsequent act:ou depends
haf1les keeutr pnwer than thar ~ the micro
setrc- IEEuHEh Enre .1ctas OF ron,p,s1itv.
ai:tt long lcf.Ie the microscope can have snv
| y,'lre IN the matter, tho rlo-t highly trained
intellect, the Eo=, refined and disciplined
imagihatlon, rctites in bew.lLermeut from
tue contemplation Of the problem. We are
struck tuni., iv m a.:oni~hurnt which nm
microscope can Iel.cvt- lAub:iug Iot orly TIM
ltswtr Of our Instrument, hut even whether
we ourselves Tossers tho intellectual clements
WHICH will eEtr- eratle us TO 6rappe with tho
ultimate structural ene.glrs OF natnre.
lstt the .recu1atlve faculty. of which I'M
| aelnation forms 90 large pars, will nevsrtha-
less wander into regions where III. hons of
certainly would -eem to he entirely -hut out.
We tla:Ek that though tho detailed ans!ys.
may ls. AID r.ay ever rem.in. beyond ns.
general nntions may he attainah!c. At alt
nnipoer Of microtc coplc inquiry llts ii, m
incLse field For the exercise. Of The imngna-
tion+ Il il only. however, thu privileged spir-
its who Know how TO uss their liberty without
abnriEg il, 1ho are able to sllrronnd mssina-
ton by the trim froueiers Of rea-ou. th,t arc
likely to work With auy p1uht hers. f;nt
freedom to them il u such paramount lmp,r-
tanee that. for the rake OF securlrg il, Gns,d
deal OF Wiidnees on the part Of weaker bretl,-
zen nay be overlooked. In mare tenH.s tn III
ore. Ar Darwin ha- drawn heaviIv uron tho
| srituii!ic tolerance Of l,is ago. He has drawn
heavily upon time in ils Development OF
srec'es, a1.d he has asawn a4lventnro. upon
matter III hie theory Of pangel..i.. accord
iuE TO thts theory, germ aIIeady microscopic
Is world OF miLos gtrmr. NOT ontv il the
| u9esA4sA1 AZ Nuo!s wrapped up Ill tlIc EetI
but every organ Of the orgari.n has t!l4
IT hlecisl seed 1n the case Of Mr. lar IN
observation imagination, and rearou com
blneL have run back with wonderful sagac,tI 7
| aud success over 4 certain 1ergti. OF tue,
line Of lio9ogicx1 succession. tiuidetl bv ANAL
cgy, in his Origin Of snecies,' he PLACED At
the root Of life primoraial germ, fron which
lie conceived the smaxlng richness and variety
| of the life that IL noH npon tic ear,h's r11r-
face might be deluctd. II this we're true, it
| would not Be final Tie hnnan Imagination
| would inf.llitls look behind the germ. AMI in
4uire into tile history OF ita G+ne-is. Ger.
raintx is tsse hopeless, but the materials for
twilight OF speculation, the inquirer welcome.
every CLEAN, and teeks to augment his light
by mdiEect inciiences. And thougt tho GER
Trinity Possessed By experimental ir,tui1v In
he1a shnt cut. the imagination IL net feft GU
! 1irtly Without guidance