CONTENTS 



PAGE 



PEARLS AND PARASITES I 



THE DEPTHS OF THE SEA 1 6 



BRITISH SEA- FISHERIES 42 



ZEBRAS, HORSES, AND HYBRIDS 73 



PASTEUR 10 1 



MALARIA 129 



'INFINITE TORMENT OF FLIES ' 15S 



THE DANGER OF FLIES 1 74 



CAMBRIDGE 1 83 



INDEX 217 



