CONTENTS 



PAGE 



Preface in 



Introduction i 



The glacial period 4 



Cultural subdivisions of the period of early man and their approximate 



correlation with geologic conditions 1 1 



Additional literature 20 



The ancient skeletal remains of man 22 



Tertiary man 22 



The jaw of Foxhall 23 



The oldest well-authenticated skeletal remains of man and of related forms. . 28 



The Pithecanthropus 28 



The first find : The lower jaw 32 



The finds at Trinil 35 



The first tooth 35 



The skullcap 35 



The femur 36 



The second tooth 37 



The third tooth Z1 



Later excavations and studies 37 



The opinions of Dubois and others regarding the remains 38 



Subsequent history 44 



Dr. Dubois' latest publications on the remains 46 



State of preservation and age of the remains 46 



The skullcap 47 



The brain 48 



The teeth 48 



The femur 49 



Measurements 51 



Geological age of the Trinil deposits 52 



Critical considerations 53 



The writer's visit to Trinil 57 



The latest contribution to the study of the remains 60 



The " second Pithecanthropus " 62 



Additional literature 65 



The Eoanthropus 65 



The original find 66 



The additional finds 68 



Recapitulation 70 



The skeletal remains 7i 



The first skull 7i 



The brain 75 



The lower jaw 76 



The separate molar 87 



The canine 87 



The second skull 88 



Concluding critical remarks 88 



Additional literature 90 



V 



