S jee es Mos 
* Paves 
of Darwin’s Treatise on the Origin of Species. 233 
has really nothing to do with any thing else, except where you 
e the word for the will. And in that case you have not 
argument for design, but testimony. In nature we have no testi- 
mony ; but the argument is overwhelming. 
few of them preserved as breeders of still other variations, by 
natural selection ? 
Finally let it be noted that your element of necessity, has to do, 
80 lar as now, only with the picking out and preserving 
of certain changing forms, 7. e., with the natural selection. This 
selection, you may say, must happen under the circumstances. 
iS 18 @ necessary result of the collision of the balls; and these 
Tesults can be predicted. If the balls strike so and so, they will 
be deflected so and so. But the variation itself is of the nature 
of an origination. It answers well to the original impulse of the 
rdaining will, The parent had not the peculiarity of the vari- 
ety, the progeny has. Between the two 1s the dim or obscure 
i an : 
e agree that judging from the past—it is not improbable 
; y 
Ica] 
Mot Variation will be only a resolution of variation into two 
JOUR. SCL_SECOND SERIES, Vor. XXX, No. 89.—SEPT., 1960, 
30 
