105 
dissipated into space, for a large portion of the heat never 
returns. But this is a remote result. Meanwhile (p. 127) the 
\ isible Universe is thus developed by the inorganic agencies 
which we call “ forces/’ (not unlike the monads of Leibnitz)— 
acting perhaps, on certain “instructions”? (pp. 88, 90, 148, &c.) 
Lastly, life-development is different from both “chemi- 
cal” and “globe” development; and this has next or(3)Life . 
to be considered. Here, also (p. 128), our authors’ development, 
views demand a physical development rather than any super- 
natural evolution out of unconditioned Power. 
Tnc world, by its organic changes, became fit for what is 
called “life ’ (p. 132). “Accordingly life appears .” First in 
a low form ; eventually in the moral, intellectual, conscious 
agent (pp. 129, 130). The theory of the first process of life- 
development is not, however, drawn out. 
4 he development and the gradual elevation are stated by our 
authors as facts.* The atoms have “come together”; chemical 
substances result, the substances gather themselves “into worlds 
of various sizes.” Beyond this, explanation is not given. Then 
comes rude life ; this culminates in man. 
24. The authors thus, in fact, possessed of the first Life- 
development, dwell with more detail on the de- Deveio m ent 
velopmeut of Species; and their remarks are in- otspecies. 
teresting and to the point. 
They quote a well- worded passage from Professor Huxley 
(p. 134), showing that varieties of living beings may arise 
“ spontaneously,” or from unknown causes, and may be also 
perpetuated by artificial selection. Next, it is obseiwed, that 
such varieties, when they do arise, have a power at times of 
more strongly producing themselves, and occasionally imply 
natural selection, as Darwin and Wallace show. And the 
“stronger” may displace the previous type (p. 135). 
The sterility of hybrids is not, they remind us, to be too 
hastily assumed. There may be gradations from ste- (Wen called 
lihty to fertility. Give nature time enough, and it ''hybrids,” as 
is suggested, that a process of transmutation may be Ks’lo'Sa. 
arrived at. Even man might be developed from a pri- ture - {5 / 3 P , c- ) 
■ How the movement all started, we do not here see ; and this gap in 
the theory we are unable to fill. If it was meant that some latent power, 
as Dr. Tyndall says, might have been m “matter” (which contained it as 
its vehicle) and was waiting to be exerted when the kinetic and potential 
energy had done their work of action and reaction, this seems the place 
where it should have been more fully explained. Just to say that, at last, 
ife appealed, _ is puzzling. “Inorganic agencies” are hinted in p. 127 ; 
but more than hinted in p. 90, and atoms are “ endowed with Force” ! p. 128. 
