Chapter XXII: Preface: 291

GLOSSARY 295

I.--DISCOVERIES 299

II.--AN ACCIDENT 339

III.--DEATH 354

IV.--AN EPIDEMIC 392

V.--LITERATURE 407

VI.--INSPIRATION 419

VII.--PIONEERING 436

VIII.--ANOTHER THREAT 487

IX.--POLITY 507

X.--THE MANORA AND THE IMANORA 538

XI.--ETHICS 554

XII.--A WARNING 629

XIII.--RELIGION 654

XIV.--THE LAST FLIGHT 694

EPILOGUE 707