New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1873-04-26

generations. sometime, preserve' through genera
becoming permanent In what Gale breeds. but
mover affecting typical structure. We innst rs " seems
70 me, look upon tbe law OF inheritance A. enled 10
preserve NOS 10 diversity, types active 0nly 70 far ss
TO introduce freshness, constant renewal VI m aydu
AMY, IA II were, but neVer mparinB original pa Horns
OK nOrms,
PERSISTENT TYrEs-THE LAcUsTRISE EFocH.
shall show tho persistenoy Of type In more detail
when we examine tho successive introduction OF organ
lied beings in geological times. aude TO It now onIy
with reference 10 what ore known prehistoric tme
ana especially to the historic times which human
Ivy itself belongs. In the acustrine dwellings OF Swift
erland there lived race Of people all record OF whose
cnfsions into Gaul and Germany. Cssars armies ia
their invasion OF Gaul pis;ed over regions Of country
still exist along the shores " the Lake OF Neuchats
Dut upon their remains, ana yet the great Roman gen
eral aud historian know nothing Of item Their ruins
lie under the water tins Dwellings having been bnt ont
upon piles into the aSe no doubt for security
window OF my fathcrs parsonage az Concise looked
down on such buried settlement, though we dld not
then know OF Tia existence. As boy played IN its
Immediate vicinity; Ia later years. 0n ny lasI
visit 70 swift Hand, when the outing OF
story SD loug hidden, 1 gathered implempnt- worn
bones Sc. On the spot myself Ia these ancient dws-
ings remains arc found Oh our demonstrated animals aud
OF cultivated plants. Bones pigs dOgs cattle deer
&c. and wheat O1ts, cherries nuts and the Ike have
been found within the precincts Of thee iaeu.rIa.
dwellings. THESE relies do not dl.r Ia any way from
the products or tue same Kind In our time. Tie
device OF nature 70 MAINTAIN type, and preserve
essential and Characteristic features generation after
ernertion It IS true thar ancient ~ ese scnsirins
dwellings, are. when compared with any historical
chronology, they are modern a. compared Win the
ear geoI9gra ~ Du ,,no e,rt RRrpi.b e
deuce OF the KIND, and form part Of a coherent
history leading to tbs same conclusion shall be- able
show you wnen examine the animals an1 plants
belonging TO them
INHERITED TRACES or SURGICAL OPERATIONS.
But while the Office OF inheritance IS 10 pre'crvo
typical features is power to transmit Individual 20
al 10 Ian I,r
sequard, who has made moro experiments among AMI
mails than any man living, continuing them upon $40
cessive generations and asccrqining what may
be transmitted, has stated facts 20 me Wh.cn almost
few of them He has found that the disease OF epiepy
can be induced In guinea PIGS py certln o 'tAtons'
tenn may be transmitted from generation % generation,
and thus become hereditary. Where sden oprfs
tious have produced maliOrmatiOns OF the sHn,
"a il often the case, these also pave been
transmitted; or where tae paws nave Og zen
been also transmitted Maliormaton 1uced by ihse
experiments disease during the life OF parent has
been passed down to the offspring ond even haOits arm,
ing from disease have been Inherited IN the same way
Ia one such the popularity existed IN the iear
i'm another It produced in the male In the latter IN
stance the male transmitted 10 own diseased eohdioa
70 another generation through healthy female a2ss
than this tie female through whom these diseased 90
scendants had been produced eventually became hT'eI
diseased in tine same manner as the male lhess 10
have fearful significance with reference 10 tne pro
cess the subtle influence by when snch results arc pro
dnced we must be the present since we canno
cTpIan or understand it. All tnat We know Is thatt
material combination takes place which enaDies US -
saw that these individual pecuarities are sed thou
the egg OF the female and the spermao PaIec' y" W"
male and may reappear IN ther progeny, -, -.
still more surprising fact Is tnat or man VINO nao
n diseased tooth, marked with little black speck lhh
slight mark was transmitted TO his children Is snch an
sbartanca brouRht about by material transmissi0nt
IL will be long before We shall answer THIS question: Du,
All these facts have direct bearing upon tue queuph o
| maintenance change OF type. Therefore, return
again and again to this subject OF inheritance, and ty
o Illustrate ii all sides. In direct connection WITH
ths question OF inheritance is that OF hybrdy nave
shown you that the progeny OF closely allied ahliDal
| NAV resemble indlherently the male or ieDale lFOm
which they spring. All the descendants may be Ike tne
one or the other parent may share the character
stcs OF both But whenever animals OF dlueeht sectf
cross with each other as for instance me morse ana oh
kew the progeny is always medium between tue Two
| neither a horse donkey, but mule. In othok
words the offspring Is always halfDreed, Always III
| termediate between the father and mOther' AIMING
animal, this occurs between what are caueu sPcclo
| Among men it occurs between what are called races
The children Of whites aud negroes are helheI paSA,
nor whites-they muatJOes. The chldfen oI
aud Indians are neither the one nor tue 2'pSy D"s W
balcbreeds having characteristics OF both 4le sant
is true OF the white and Australian, the whte anu Clr
nese This ia one OF facts brought forward III favor
of the independent origin OF the races OF men III ia.
been this account inferred tnat they ust 10 osn1
from each other in the same way as species Oh ahna
are distinct from each other. Will not dWeI upon thn
noint hut only ask what bearing these facts nave
upon the preservation or altet .St tha 1P ~;
generation the takes place between tle nDrcu
| we will saw a mulattO aud white, or between tha
mulatto aud black, and THIS continues LOT Two OK nr S
we revert to the pure type Ihe same Is true vi
we may produce hybrids or haltDreeds Dut put tneD
for generation or two with tlelr own hnu .Hey
no power 10 transmit the bias they have received Dg
| their progeny revert 10 their own original norm: "
seems TO me this is very strong evidence tnat an theo
laws OF inheritance aud transmission tend 10 Tue MAIN
| tenance rather than To the dlVersinealoH VI yPo'