212 W. A. Norton on Molecular Physics. 
two into the same electro-polar condition, and, in this state of 
induced polarization, a force of electric attraction will subsist be- 
sia the och As one particle after another in the line 
s to with those previously —— its previous 
Siar ention will be enhanced, and it w 
Te force upon those not yet oryitaBlizad: At the same 
the ¢ susie ‘and repulsive action of the contigu- 
experiences the Teactive te rt in the direction perpen- 
quires an increased positive polarization on the outer side, lying 
in this perpendicular direction, and therefore exerts an increased 
force of electric attraction in this direction. In the varying 
operation of this induced electric polarization, and of the reflex 
action just noticed, we may discern the probable origin of those 
has shown will suffice for the explanation of secondary plan 
erystallization. 
To illustrate by a special case, let 
fig. 2 represent a process of erystalliza- 
tion in which the veh are ae 
in successive hen ¢ 
WwW Cc, ? 
are the outer inale their si ‘sides 
tion, in addition to the increasing mo- 
lecular attraction that results from the 
the S : ; 
next step in the process should be the ~ 
union of the molecules thus spit son all of these peace = 
pponla have the same ten cra to unite, unless there should he 
q 
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