Investigations of the Department of Psychology and Education of the University of Colorado, Volumen3,Tema 1

abnormal acceleration accessory muscles adolescence adult standards advanced adults animal anthropometry athletics average basal ganglia become biceps birth blood vessels body boys brain cells cervical ribs chest child corresponds defective disposition emotional energy epigenesis erethic evolution exercise favour female functions fundamental germ plasm girls grow growth curve growth in height gymnastics habits hand head heart height and weight higher honour human increases fastest individual infant instincts interest kidneys larger later leg-power less lungs male marked maturity measurements ment mental modern movements muscular muscular development Natural selection needs neoatavistic organs pectoral girdles pelvis period phyletic physical culture play prenatal primitive psychic psychology puberty race recapitulation recapitulation theory regarded relation relaxation reproduction responses rickets savage scientific sebaceous glands selection skull soul stage stimuli strength suggestive symmetry tall taller tendency Teratology theorem thinks tion tisms triangle varies weight increases whole