HILGARD—NATURAL SERIES. 129 
Iti is therefore required, first, to establish all iy ultimate 
under consideration, as, in organographical classifica- 
tion, the individuals, as coérdinate HB eB and whic! 
comprise the whole subject. Next, by the conception of hia- 
tus without, and transitions within, and that do not admit of 
ation, the idea of the “species,” i. e., type of individuals, 
is made coérdinately to comprise the whole subject once more, 
A certain character being once conceived as obtaining in re- 
spect oh sa group of species, if the same character hold 
good in thetic application to the. codrdinates, the other 
species, + will likewise produce cod 
a i ulty ; and ae eae position 
, at once, be Sahay applied by an application on 
all the coérdinates co 
_ It is thus, that, by a mare graduation ot the subject, 
that. subject itself a a systems as complete and available as 
: ible, provided the motives advanced 
for. such coordination 
mains a matter of i in- 
subject be 
