Show adaptability of brain each vocation makes a diffor kint call tipon that th brain and develops faculties and qualities pr peculiar cullar to itself so eo that as an the various professions trades and specialties multiply the brain takes tabes on new adap adaptive tivo qualities thus giving greater v variety clety and strength to as a mass when tha th world was young the brain of man was very primitive because th the I 1 demand upon it wail waa largely for self protect protection loil and the acquisition of food which called only for the development of its ita lower lla its animal part As civilization advanced however there was a higher call upon the brain and a more varied develop ment until today la in the highest civilization iza tion it has become exceedingly exceedIng ir complesi om plax success magazine agazine W |