CONTENTS 



VII— THE BRITISH COLUMBIAN OYSTER 



Description 130 



Hermaphrodite Character 131 



Artificial Fertilization 132 



Comparison of Species 133 



VIII— SUMMARY OF OBSERVATIONS AND DISCOVERIES 135 



BIBLIOGRAPHY 138 



INDEX 149 



PLATES 



I Egg, Embryo, Larva, to youngest Spat {enlarged ISO times) 16 



II Spat {enlarged 50 times) 48 



III Spat {natural size) 56 



IV Larva, Spat, and Oyster attached to Periwinkle Shell 58 



V Stages in Development of the Oyster 64 



VI Sections of Larv^ and Spat 68 



VII Sections of Spat and Oyster 72 



MAP 



Malpeque Bay 95 



