INDEX. 



Absorption by dry tissues, 76 

 Absorption of carbon dioxide, 89, gi 



of gases, 72 



of minerals, 61 



of water, 61, 71 

 Absorption-tubes, 97 

 Acclimatization, 134 

 Acids excreted by roots, 101 

 Aerotropism, 132 

 Air-spaces, 72 

 Anaesthetics, 58 

 Anatomical course, 31 

 Apparatus, 31 

 Appliances, 5 

 Arthur, J. C., 32, 141 

 Artificial cells, 66, 67 

 Ash, 100 



Aspirator bottles, 33 

 Assumption of form, 107 

 Autographic recorders, 45 

 Automatic watering, 108 

 Autonomic movements, 114 

 Auxanometer. 36, 102, 105, 141 



B 



Balances, 31, 33, 79, 139 

 Bell-jars, 37 

 Bibliography, 22 

 Botanic garden, 23 

 Biogenesis, 9 

 Biological education, 3 

 Black paper, 35 

 Boltwood blast, 26, 33 

 Bottles, to clean, 43 

 Bougies, filter, 66, 137 

 Beyle's law, 66, 67, 68, 69 



Bunsen burners, 32 

 Burettes, 36, 62 



Capacity, measures of, 46, 47 



Capillary tubes, to make, 39 



Carbon dioxide, absorption. 73 

 and stomata. 90 

 in photosynthesis, 89 

 to remove, 42 

 to test for, 42 

 to generate, 42 



Cell-size, 60 



Cell-walls. 60 



Centigrade to Fahrenheit, 47 



Centrifugal apparatus, 126 



Centrifugal force, 126 



Chapman pump, 26, 33 



Chemical effects, 59 



Chemical processes in growth, no 



Chemicals, 31, 35 



to keep pure, 43 



Chemotropism, 58, 132 



Chlorophyll, 86 



Circumnutation, 113, 114 



Cleansing germinators, 41 



Clinostats, 36, 120, 128 



Cobalt chloride. 83, 139 



College curriculum, S, 9 



Color chambers, 109 



Colored lights, 107 



Color screens, 88, 89 



Colors, pure, 45 



Constant temperature, 26 



Constant water-supply, 44 



Control experiments, 17 



Conversion tables, 46, 47 



Corrections for temperature, 138 



143 



