12 ILLUSTRATIONS 



LADY SLIPPER ORCHIDS 68 



SAMOAN GIRL HOLDING COCOANUTS 82 



GETTING SPECIMENS OF SPIROGYRA 82 



THE MOTION STORY OF SPIROGYRA 86 



MALE AND FEMALE CELLS IN THE LONGATTA 



SPIROGYRA 88 



WHEAT 94 



BEANS 94 



THE AUTHOR IN HAWAII AND THE SPIDER LILY 96 



SPIDER LILY POLLEN 96 



MOTION PICTURE OF THE SPIDER LILY 98 



THE ENTIRE MICROSCOPIC UNIT 104 



A DESERT HILLSIDE OF OPUNTIA 116 

 HALF A DOZEN KINDS OF CACTI GROWING TOGETHER 116 



MOST CACTI REQUIRE TWO DAYS TO OPEN 118 



NIGHT-BLOOMING CEREUS 120 



VENUS FLY-TRAP 120 



LEAF i/ 8 INCH WIDE, MAGNIFIED 500 TIMES 128 



LEAVES OF BUCKEYE UNFOLDING FROM CLUSTER 128 



BREAD MOLD SPORES INFECTED WITH BACTERIA 136 



FOUR BREAD CRUMBS INFECTED WITH MOLD 136 



SPORES GERMINATING AND TUBES GROWING 136 



SHADOWGRAPHS OF A ROSE-BUD OPENING 144 



RAT IN LEAD TUBE 148 



SHADOWGRAPH OF RAT'S FOOT 148 



THE HARBOR AT PAGO PAGO 154 



THE EYEMO CAMERA FOR UNDER-SEA WORK 156 



STARFISH EATING 158 



