Experiments in Rhythmetic Periodicity 147 
similarly. transmitted. We know from the experiments of 
Turner that Saturniids posses auditory powers, but we have no 
reason to suspect that they would function from great distances, 
although they might be of service in locating the female at close 
range. Other vibrations, akin to radio or wireless or in fact 
akin to the vibrations upon which our known senses function, 
are also carried on the atmosphere or ether. That such vibra- 
tions, as yet unknown to us, should function in bringing to- 
gether the sexes, we neither affirm nor deny, but until experi- 
mental proof is offered, we place the burden of proof upon any- 
one who wishes to argue in their favor. So of the four familiar 
senses, there are two, olfactory and optical, that seem to function 
for distant orientation, and possibly two, tactile and auditory, 
for proximate orientation, the latter, of course, in addition to the 
olfactory and optical senses. 
Now when you have at one end of the line a mass of matter 
which shows an affinity for another mass at the other end, and 
this affinity is made manifest through the functioning of cer- 
tain sense organs, the masses cease to be so much inert or non- 
conscious matter, but become at once living, psychically en- 
dowed animals. Since this organism does respond to lights, 
odors, winds, ete., to the fullest extent of its being, it would be 
Well to see experimentally if it is only a tiny mechanism that 
blindly reacts to environmental conditions, or if in a large num- 
ber of them under observation, some individuals might display 
Something akin to selection or emotions. 
The experiments recorded in Part II were performed for the 
purpose of trying to discover by what means the males do find 
the females from a great distance, as the preceding pages have 
revealed they really do, and also to discover if the females are 
anything more than mere bodies of odoriferous substance which 
Passively wait the coming of the males. In Part I, I hav casi 
covered to my own satisfaction that wind, odor and hoege — 
ditions of light are the environmental requisites for their com- 
ing together ; in Part II, I shall try to show experimentally 6 
they have the ability to perceive odors borne on the wings of the 
wind, and that they perceive light vibrations, and react to them 
in various ways, according to the make-up of the individuals. 
This combination of perception and reaction to stimuli, mm con- 
