INDEX 



Pasteur, 39. 

 Pebrine, 272. 

 Pepper, 145. 

 Phosphorescence, 223. 

 Photo-micrographs, 274. 

 Piperine, 146. 

 Plague, 175. 

 Plant animals, 89. 

 Plant structure, 31. 

 Plumatella Repens, 77. 

 Pocket magnifier, 50. 

 Poisons, 259; testing for, 



249. 

 Polariscope, 141. 

 Pollen grains, 106 ; of Esch- 



scholtzia, 107 ; mallow, 



107; Scotch fir, 107. 

 Pond life, apparatus for 



collecting, Q6, 

 Pop weed, 228. 

 Porta, 18, 20. 

 Potato disease, 183. 

 Preservatives in food, 149. 

 Principal focus, 45, 54. 

 Prisms, 43. 

 Purple of Cassius, 257. 

 Pure cultures, 165. 



Quartz, 126, 129. 



Raphides, 255. 



Rasping organs of snails, 



123. 

 Reaumur, 38. 

 Refraction, 42. 

 Rocks, 126; primary, 



128; secondary, 128. 

 Rotifers, 36, 74. 

 Rousselet's solution, 806. 

 Rust of wheat, 185. 



Sand, 126, 128. 



Sandstone, 180. 



Scales of fishes, 120; liz- 

 ards, 120; snakes, 120. 



Scheiner, 23. 



Schott, 285; 



Sea anemone, 208; cucum- 

 ber, 218; lace, 230; 

 lemon, 222 ; lettuce, 

 228; mat, 31, 76, 215; 

 mouse, 220; pink, 225; 

 slug, 218; urchin, 218; 

 weed, 225. 



Section cutting, 294; in 

 pith, 298. 



Sections, plant, 97; rock, 

 133. 



Seeds, 111; of campion, 

 180; clover, 179; com 

 buttercup, 180 ; corn- 

 flower, 180 ; evening 

 primrose, 180 ; grass, 

 179; larkspur, 180; rib 

 wort plantain, 180, spur- 

 rey, 180 ; wild carrot, 180 



Seed testing, 178. 



Seneca, 17. 



Serpula, 221. 



Shale, 129. 



Shell binder, 221. 



Shells, 122, 129. 



Shoddy, 269. 



Shrimp, fresh water, 79. 



Silk, 270; artificial, 272; 

 glue, 270; tussore, 271; 

 weed, 90; worm, 82. 



Silver fish, 31. 



Simulium, 201. 



Slate, 129. 



Sleeping sickness, 178. 



Slides, 64. 



813 



