14 Comparative Physiology and Psychology. | January, 
Desires, feelings, sensations, consciousness, cognitions, ideas, 
memories, emotions, etc.,are one and all conditions of the molecules 
of the cells, and in the ravenous though unavailing appetite of some 
diseases wherein nutrition is at fault, the feeling is shown not to be 
solely located in the intestines but all over the body, and the inabil- 
ity of physiologists to locate centers for desires in the brain is ex- 
plained. Whenever the exhibition of a feeling or a feeling itself 
has been destroyed through injury, it has been through failure of 
the zracts which convey molecular movements generated by such 
feelings from the now nervous bodily cells wherein those feelings 
are highly developed. The nerves are pure association systems, 
and where the feeling aroused in an organ had become, through 
constant repetition, associated with certain other feelings or with a 
motor expression, then nerves of association would be built up through 
least resistant lines. 
The organism consisting in the sum total of the life activities 
of its cells, the dissociation of the organism from its locomotory 
organs, the legs, cut off the ability to walk, and paralysis of 
strands leading to the legs dissociate similarly. 
Cutting off the organ of special sense or destroying its tracts 
similarly dissociate. There is a difference between cells acting 
for themselves or acting unitedly with others. 
Returning to our Amceba, the mobile granules and molecules 
moved with every impulse. Its sensations were motions and its 
motions sensations, the two were inseparable. With a change in © 
the density of its ectosarc, retarding fission, the morula form arose 
and in the break of the envelope Amcebe are, as might be ex- 
pected, liberated, but they have inherited this molecular develop- 
ment of ectosarc induration and develop into synamcebe as did 
its parent. 
The planzeada developed cilia through a similar law. Owing to 
the difficulty of withdrawing pseudopodia once protruded, these 
atrophied into vibratile organs through starvation, and the hunger 
motions of the cells set up oscillations of the cilia which, sub- 
serving the life purposes better, were perpetuated and the motions 
of the cells adjusted themselves to the necessity and brought the 
environment food to itself by causing eddies, and a new means of 
locomotion arose. Still sensation and motion were identical, for 
the molecular movements constituting sensation ended in their 
summation of motions into gross locomotory motion, except that 
