viii LIST OF ILLUSTRATIONS. 



Fig. Page 



58. Phases in the Life-history .of Monads and Amoebae .. 220 



59. Similar Organisms, segmenting into brown Fungus-germs 



or developing into Amoebae .. .. .. .. 227 



60. Segmentation of Embryonal Areas into Fungus-germs .. 232 



61. Mode of Origin and Development of an Embryo of un- 



certain nature .. .. .. .. .. .. 236 



62. Ciliated Infusoria .. .. .. .. .. .. 238 



63. Mode of Origin of Paramecia from the Pellicle, after Pouchet 240 



64. Mode of Origin of Paramecia .. .. .. .. 247 



65. Mode of Origin and Development of Vorticellge (Pineau) 253 



66. Fungus with minute spores, found in a closed flask 



(Pouchet) .. .. 287 



67. Development of Embryos in Paramecium (Cohn) .. 294 



68. Development of Embryos in dying Kerona (Pouchet) .. 295 



69. Pouchet's Apparatus for showing that Ciliated Infusoria 



are derived from the Pellicle .. .. .. .. 300 



70. Conversion of Milk-globules into Fungus-germs (Turpin) 313 



71. Origin of Amylobacter within cells and laticiferous vessels 



of Plants (Trecul) 319 



72. Illustrating the Development of Botrytis Bassiana in the 



Blood of Animals suffering from Muscardine (Guerin- 



' Meneville) .. .. • 327 



73. More developed form of Botrytis Bassiana as it grows 



through the Tissues (Audouin) .. .. .. .. 329 



74. Psorosperms and their Mode of Development (Balbiani).. 355 



75. Heterogenetic Origin of Monads from Nitella (Carter) 379 



76. Mode of Origin of Trichomonas, and its Transformation 



into Actinophrys and Amceba (Nicolet) .. -. 384 



77. Formation of Pythium and of Astasiae within cells of 



Spirogyra (Carter) 390 



78. Transformations of Vaucheria protoplasm 397 



79. Lower Transformations of the substance of Nitella .. 403 



80. Higher Transformations of the substance of Nitella . . 405 



81. Transformations of Chlorophyll Corpuscles .. .. 409 



