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CONTENTS
| XVII | Off on Snowshoes | 136 |
| XVIII | Great Excitement | 145 |
| XIX | The Emergency | 153 |
| XX | Betty's Ride | 159 |
| XXI | Betty Comes Through | 166 |
| XXII | On the Brink of Discovery | 174 |
| XXIII | Can It Be Done? | 180 |
| XXIV | Twenty Miles of Grade | 188 |
| XXV | On the Deck of the San Salvador | 199 |
