...time thought ; yet I hold Mr. Darwin to have shown bevond question, that a great part of the facts — requisite for successful life as society advances....working, the nervous system must become a heavier tax on the organism. Already the brain of the civilized man is larger by nearly thirty per cent. than...

...enormous range of its effects, or of the conditions under which a large part of its effects are produced. requisite for successful life as society advances....greater consumption of materials to repair it. So that hoth in original cost of construction and in subsequent cost of working, the nervous system must become...

...enormous range of its effects, or of the conditions under which a large part of its effects ire produced. requisite for successful life as society advances....this larger quantity of feeling and thought, in a bruin thus augmented in size and developed in structure, is, other things equal, the correlative of...

...quote a passage from Mr. Spencer, the philosopher who has done most to illustrate this subject : — " That future progress of civilization which the never-ceasing...working, the nervous system must become a heavier tax on the organism. Already the brain of the civilized man is larger by nearly thirty per cent, than...

...hold their places and rear their families under the intensifying competition of social life, is, ctlvr things equal, the correlative of larger brain. Those...working, the nervous system must become a heavier tax on the organism. Already the brain of the civilised man is larger by nearly thirty per cent, than...

...enormous range of its eflVets, or of the conditions under which a large part of its effects ire produced. requisite for successful life as society advances....things equal, the correlative of a greater wear of nerv ous tissue and greater consumption of materials to repair it. So that hoth in original cost of...

...crowded and more complicated must have for its concomitant an increase of the great nervous centers in mass, in complexity, in activity. The larger body...working, the nervous system must become a heavier tax on the organism. Already the brain of the civilized man is larger by nearly thirty per cent, than...

...quote a passage from Mr. Spencer, the philosopher who has done most to illustrate this subject: — " That future progress of civilization which the never-ceasing...working, the nervous system must become a heavier tax on the organism. Already the brain of the civilized man is larger by nearly thirty per cent, than...

...quote a passage from Mr. Spencer, the philosopher who has done most to illustrate this subject : — " That future progress of civilization which the never-ceasing...working, the nervous system must become a heavier tax on the organism. Already the brain of the civilized man is larger by nearly thirty per cent, than...

...elToet?, or of the conditions ur.Jer which a large part of its effects are produced. 80 feeling,and thought, in a brain thus augmented in size and developed...working, the nervous system must become a heavier tax on the organism. Already the brain of the civilized man is larger by nearly thirty per cent, than...