CONTENTS. 



INTRODUCTION: 



LABORATORY AND APPARATUS 17 



NOTES AND DRAWINGS 18 



DISSECTION 21 



THE MICROSCOPE 22 



FROG 26 



ORGANS, TISSUES AND CELLS 45 



PROTOPLASM 47 



CELL (CYTOLOGY) 50 



AMCEBA 54 



PARAMECIUM 57 



VORTICELLA 62 



QUESTIONS ON THE PROTOZOA IN GENERAL 64 



PLEUROCOCCUS 66 



COLONIAL PROTOZOA 68 



SPIROGYRA 70 



SPONGE 73 



HYDRA 75 



HYDROID: 



PENNARIA 80 



OBELLA 83 



MEDUSA 85 



EARTHWORM 87 



SAND WORM 95 



FERN . 98 



YEAST 104 



BACTERIA 107 



CRAYFISH 110 



GRASSHOPPER 116 



HONEYBEE 121 



CLAM 125 



SNAIL 133 



FISH 135 



CLASSIFICATION . 140 



