INDEX. 



145 



Hygroscopic changes, 104 

 Hygroscopic thread, 43 

 Hygrometer, 139 

 1 1 yponasty, 115 

 Hypothesis, 13, 17 



I 



Imbibition, 75 

 Increase in size, 102 

 Induction, 10. 13 

 Induction-coil, 58 

 Insectivorous plants, 73 

 Intercellular spaces, 72 

 Intramolecular respiration, 96, 99 

 Investigation, 5, 9 

 Irritability, 54, 117, 133 

 Isotonic coefficients, 74 



J 



Joints, air-tight, 40, 141 

 pressure-tight. 40 

 water-tight, 40 

 to tie, 40 

 to test, 41 



L 



Label for bottles, 44 

 Laboratory, 23, 30 



plans, 29, 30 

 Lateral stimuli, 112, 113 

 Leaf growth, 106 

 Leaf structure, 72, 82 

 Lectures, 20 



Length, measures, 46, 47 

 Lenticels, 72 



Light and photosynthesis, 85 

 Light effects, 56 

 Light through leaves, 88 

 Literature. 12, 21 

 Living cells, mounting, 141 

 Locomotion, 135 



M 



Magnifying-wheei, 102, 103 

 Manifestations of irritability, 132 

 Manipulation, 38 

 Mariotte's law, 68 

 Materials, 31 

 Measuring-glasses, 33 

 Measures, 46 

 Membranes, 62 

 Mercury column. 46 

 Mercury receptacle, 33 



Mercury, to clean, 41 

 to keep, 33 

 Metabolism, 84, 100 

 Metric system, 46 

 Metronome, 33, 54 

 Micellar theory, 20, 74 

 Micrometer, 36, 54 

 Microscopes, 35 

 Microspectroscope, 33, 88 

 Minerals, use of, 99 

 Moist chamber, 45, 118 

 Moisture cylinders, 130 

 Morphology, 9 

 Motor regions. 134 

 Movements, 112 



Movements of protoplasm, 1 1, 19, 53 

 Mycorhiza, 73 



N 



Nitrification, 99 



Nitrogen assimilation, 99 



Note-books. 14 



Nutrient solution, 36, 71 



Nutrition, 60 



Nyctitropic movements, 129 



O 



Observation, 13 

 Ontogeny, 115, 116 

 Operations, physiological, 60 

 Organism-building, 59 

 Osmomeier, 62, 63 

 Osmosis, 20, 62 

 : Osmotic phenomena, 65, 73 

 Osmotic pressure, 20, 68, 69, 70 

 Optimum, educational, 10, 13 

 Oxygen, to test for, 42 

 to remove, 42 

 Oxygen, release, 91 



removal of. 140 



' Parasites, 73 

 Parchment, 63 

 Parthenogenesis, 116 

 Pathology, 3 

 Permeable, 64 

 Pfeffer's cell, 65, 66. 137 

 Photographic outfit, 33 

 Photosynthesis, 84, 85, 100 

 Physical processes in growth , no 

 Physiology, definition, 50 

 Plans of greenhouses, 25, 26. 2~ 

 Plants for study 37 



