| CONTENTS | 6 |
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| FOREWORD | 8 |
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| NOTE ON TRANSLATION | 11 |
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| INTRODUCTION | 14 |
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| PHYSICO-THEOLOGY AND MATHEMATICS ( 1710 1794) | 19 |
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| 1. THE CENTURY OF PHYSICO-THEOLOGY | 19 |
| 2. SCEPTICISM ILLUMINATED | 24 |
| 3. THE BEGINNINGS OF THE ANALYTICAL THEORY OF PROBABILITIES | 30 |
| 4. DOES HUMANKIND GAMBLE ON PROBABILITIES? | 35 |
| PHYSIOLOGY, PROBABILITIES AND STATISTICS ( 1795 1830) | 44 |
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| 1. ADMINISTRATIVE COUNTING AND ANALYSIS OF CHANCES | 44 |
| 2. A SIMPLE RULE FOR PRACTICE | 51 |
| 3. POST-REVOLUTIONARY AGRONOMY AND THE THEORY OF GENERATION | 54 |
| 4. THE BLADE FALLS IN PARIS: POISSON S CALCULUS OF PROBABILITIES | 61 |
| 5. ENGLISH AND GERMAN WAYS | 67 |
| STATISTICAL SOURCES, LAW AND MEDICINE ( 1846 1876) | 75 |
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| 1. THE GLOBALIZATION OF FIGURES | 75 |
| 2. THE LEGEND OF THE HOFACKER- SADLER LAW | 82 |
| 3. THE MAKING OF BIRTH RECORDS | 85 |
| 4. THE EXPERIENCE OF LEGAL MEDICINE | 96 |
| SELECTION, SEXES AND STATISTICS ( SINCE 1871) | 102 |
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| 1. SUCH AN INTRICATE PROBLEM | 102 |
| 2. DARWIN S ARGUMENTS | 106 |
| 3. WAYS THROUGH THE LABYRINTH | 120 |
| 4. INTERLUDE: IN WHICH WE PUT PAID TO SOME COMMONPLACES | 129 |
| A SOCIOLOGICAL ISSUE AND ITS PERVERSION ( 1898 1942) | 136 |
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| 1. COMTE: FORCLOSURE ON AN OBJECT | 136 |
| 2. DURKHEIM: THE LIMITS OF METHOD | 139 |
| 3. HALBWACHS: A PROBABILISTIC SOCIOLOGY | 142 |
| 4. THE WORST CASE TEST | 154 |
| A STOCHASTIC RE-EVALUATION | 159 |
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| 1. IS HUMAN SEX RATIO AT BIRTH A CONSTANT? | 159 |
| 2. A SLIPPERY VARIABILITY? | 163 |
| 3. A STOCHASTIC RECONSTRUCTION | 172 |
| 4. THE DYNAMIC OF HUMAN SEX RATIO AT BIRTH | 183 |
| CONCLUSION | 191 |
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| CONDORCET (1743 1794) | 200 |
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| CHARLES DARWIN (1809 1882) | 209 |
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| MAURICE HALBWACHS (1877 1945) | 218 |
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| SEX RATIOS AT BIRTH AND THE CALCULUS OF PROBABILITIES | 231 |
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| LIST OF REFERENCES | 240 |
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| INDEX | 259 |