ILLUSTRATIONS 13 



STONE TREES OF CORAL 158 



PROFILE OF ANEMONE 158 



THE ANEMONE 160 



THE BARNACLE 162 



STARFISH EATING. STOMACH ENFOLDING PIECES 164 



20-RAY STARFISH 164 



WHITE ANEMONE 166 



SEA PEN 166 



SEA URCHIN 166 



FEATHER DUSTER 168 



CELL-DIVISION IN THE EGG OF THE URECHIS 172 



A TRAVELING CAMERA THAT PRODUCES A STEREO- 

 SCOPIC MOTION PICTURE IN NATURAL COLOR 178 



UNIT FOR PICTURING IN NATURAL COLOR AND 



POLARIZED LIGHT 208 



POTATOES GROWN BY PROFESSOR W. GERICKE 222 



TOMATOES GROWN IN TANKS 224 



