CONTENTS
| CHAP. | PAGE | |
| I. | Early Days in Boston | [ 1] |
| II. | Beginnings in Philadelphia and First Voyage to England | [ 22] |
| III. | Religious Beliefs.—The Junto | [ 37] |
| IV. | The Scientist and Public Citizen in Philadelphia | [ 52] |
| V. | First and Second Missions to England | [ 85] |
| VI. | Member of Congress—Envoy to France | [ 109] |