230 



INDEX. 



Primordial utricle, 29. 

 Proctodaeum, 83, 86. 

 Pronucleus, 79. 

 Prosencliyma, 116. 

 Prostomium, 45. 

 Protection, 71. 

 Proteids, 3, 33, 52. 

 Proteus animalcule, 27, 158. 

 Prothallium, 180, 135, 214. 

 Pi'otococcus, 178. 

 Protonema, 134. 

 Protoplasm, 16, 20, 207, 208. 

 Protozoa, 158. 

 Pseudopodia; 27, 158* 

 Psychology, 7, 8. 

 Pulse, 54. 

 Putrefaction, 197, 201. 



PURKINJE, 21. 



Radiolaria, 166. 



Keceptacle, 131. 



Receptaculum ovorum, 'J'5. 



Reflex action, 67. 



Regeneration, 73. 



Reproduction, 48, 72, 111 , 130, 152, 165. 



Respiration, 61, 150, 165. 



Retzius, 95. 



Rhizoids, 134. 



Rhizome, 111, 140. 



Rhizopoda, 166. 



Rigor caloris, 39. 



Rigor mortis, 209. 



Roots, 122. 



SaccJiaromyceSy 184. 

 Sachs, 115. 

 Salivary glands, 51. 

 Sap, 14. 



Saproph}i;es, 192. 

 Sarcina, 194. 

 Schizomycetes, 192, 



SCHLEIDEN. 20. 



ScHULTZE, Max, 21. 



Schwann, 20. 



Sciences, biological, 1, 6. 



Sciences, physical, 1. 



Segmentation, 24, 80. 



Segmentation cavity, 84, 85. 



Seminal receptacle, 77. 



Seminal vesicle, 76. 



Sensation, 48. 



Sense organs, 42, 69. 



Senses, 42, 69. 



Sensitive system, 69. 



Setae, 46, 63. 



Setigerous glands, 63, 77. 



Sexual reproduction, 73. 



Sieve-tubes, 116. 



Sight, 42, 69, 70. 



Skin, 128. 



Slipper animalcule, 168. 



Smell, 42, 69. 

 Sociology, 7, 8. 

 Somatic cells, 73. 

 Somatic layer, 85. 

 Somatopleure, 82, 86. 

 Somites, 45. 



Spencer, Herbert, 3, 99, 146. 

 Spermaries, 74, 75. 

 Spermatosphere, 77. 

 Spermatozoid, 137. 

 Spermatozoon, 73, 74 

 Sperm-duct, 76. 

 Sperm-nucleus, 79. 

 Spiderwort, 29. 

 Spirilla, 192. 

 Splanchnopleure, 82, 86. 

 Spontaneous generation, 33. 

 Sporangia, 130. 

 Spores, 24, 130, 194, 

 Sporophore, 130. 

 Staphylococcus, 194. 

 Starch, 17, 37, 146. 

 Stentor, 176. 

 Sterilization, 199. 

 Stimulus, 67. 

 Stipe, 125. 



Stomach-intestine, 51. 

 Stomata, 126, 128. 

 Stomodaeum, 82, 86. 

 Streptococciis, 194. 

 Struggle for existence, 203. 

 Stylonichia, 170. 

 Sugar, 37. 



Sun-animalcule, 166. 

 Survival of the fittest, 99. 

 Symbiosis, 177. 

 Symmetry, bilateral, 44, 110. 

 Symmetry, serial, 45. 

 Sympathetic system, 67. 



Taste, 42, 69, 70. 

 Taxonomy, 7. 

 Temperature, 38, 199, 210. 

 Testes, 74, 75. 

 Tissues, 11, 13. 

 Touch. 42, 69, 70. 

 Toxicologv, 39. 

 Trachea?, 116. 

 Tracheids, 116. 

 Trade scantia, 29. 

 Transpiration, 146. 

 Trichocysts, 168. 

 Tryptic ferment, 52. 

 Twins, 88. 

 Typhlosole, 51, 91. 



Unicellular animals, 158. 

 Unicellular organisms, 156, 177. 

 Unicellular plants, 178. 



Vacuoles, 24, 162, 170. 



