CONTENTS GEOGRAPHY OF SITE AREAS . . . . . . . 1 HISTORY OF RESEARCH ON THE COLOSSAL HEADS . . . 7 Discovery and Description . . . . . . 7 Opinions on Racial Affiliations . . 8 Sources of Stone . . 9 Removal to Present Locations . 9 The Colossal Heads in Relation to the Olmecs 10 Bibliographies . . . . . . . 13 DESCRIPTION OF INDIVIDUAL COLOSSAL HEADS Introduction . . . 14 La Venta Colossal Heads . 19 Tres Zapotes Colossal Head No. 1 . . . . . 28 Nestepe Colossal Head No. 1 . . . . . . 30 San Lorenzo Colossal Heads . 33 STYLISTIC COMPARISON OF THE COLOSSAL HEADS . . . 44 Ear Ornaments . . . . . . . . 50 Decorative Elements on Headdresses 51 Chin Straps . . . . . . . . 52 Nasions . . 52 Stone Source . . . . . . 53 Weight . . . . . . . . . 53 Iris Form 54 Mouth Form . . . 55 Narrow Ridges Outlining Lips . . . . . 56 Purposeful Defacement . . . . . . . 56 Conclusions 57 SCULPTURING TECHNIQUES . 63 WEATHERING AND MUTILATION . . . . . 68 Duration of Exposure to the Elements . . . . 68 Differences in Rock Composition . . . . . 69 Intentional Mutilation . . 70 Sharpening Grooves . . . . . . . 71 Rectangular Niches . . . . . . . 78 Gouges . . . . . . . . . 80 Ground Pits with Dimples . . . . . . 80 Summary . . . . . . . . 83 - ix - APPENDIX I: ELEMENT OCCURRENCE ON COLOSSAL HEADS . 86 APPENDIX II: OTHER LARGE STONE HEADS IN SOUTHERN MESOAMERICA 89 ADDENDUM 95 EXPLANATION OF ILLUSTRATIONS 97 ILLUSTRATIONS 100 BIBLIOGRAPHY 164 Map 1. Olmec Area xii Map 2. Tres Zapotes Mound Groups . . . . 3 Map 3. Plan of Central Group at La Venta . . . . 4 -xi - CONTENTS GEOGRAPHY OF SITE AREAS . . . . . . . 1 HISTORY OF RESEARCH ON THE COLOSSAL HEADS . . . 7 Discovery and Description . . . . . . 7 Opinions on Racial Affiliations . . 8 Sources of Stone . . 9 Removal to Present Locations . 9 The Colossal Heads in Relation to the Olmecs 10 Bibliographies . . . . . . . 13 DESCRIPTION OF INDIVIDUAL COLOSSAL HEADS Introduction . . . 14 La Venta Colossal Heads . 19 Tres Zapotes Colossal Head No. 1 . . . . . 28 Nestepe Colossal Head No. 1 . . . . . . 30 San Lorenzo Colossal Heads . 33 STYLISTIC COMPARISON OF THE COLOSSAL HEADS . . . 44 Ear Ornaments . . . . . . . . 50 Decorative Elements on Headdresses 51 Chin Straps . . . . . . . . 52 Nasions . . 52 Stone Source . . . . . . 53 Weight . . . . . . . . . 53 Iris Form 54 Mouth Form . . . 55 Narrow Ridges Outlining Lips . . . . . 56 Purposeful Defacement . . . . . . . 56 Conclusions 57 SCULPTURING TECHNIQUES . 63 WEATHERING AND MUTILATION . . . . . 68 Duration of Exposure to the Elements . . . . 68 Differences in Rock Composition . . . . . 69 Intentional Mutilation . . 70 Sharpening Grooves . . . . . . . 71 Rectangular Niches . . . . . . . 78 Gouges . . . . . . . . . 80 Ground Pits with Dimples . . . . . . 80 Summary . . . . . . . . 83 - ix -