INDEX 



Ace and osmotic pressure, 197 

 Air dissolved in tensile water, 103 ff 

 Air in conducting tracts, 91 ff 

 Air-pressure balancingosmotic pressure, 



153 

 Air-pressure in tracheae, 48, 49 

 Ambronn, 198 



Anaesthetics and transpiration, 9 ff 

 Andre, 178, 186, 188 

 Atkins, 52, 59, 188 

 Aubert, 202, 211 



Beckmann, 155 



Berthelot, 103, 114, 117 



Biot, 50, 79 



Boehm, 28, 29, 45, 95, 99 



Bordered pits, Mechanism of, 98 



Boucherie, 49, 79 



Brown and Escombe, 2, 25, 201, 211 



Bubbles in tensile water, 87, 90, 91, 92, 



93 

 Bubbles in trachea?, 91 



Capillarity and transpiration, 4 ff 



91, 203 ff 

 Carbon dioxide, Effect of, on leaves, 

 144 ff 

 Influence of, on osmotic pressure, 



150 

 Influence of, on transpiration, 11 ff 

 Cell-wall, Breaking strength of, 198 



Menisci in, 4, 203, 204, 205 

 Centrifuge for extracting wood-sap, 44, 



57 

 Chloroform, Influence of, on transpira- 

 tion, 11 ff 

 Clogging of cut surface, Elimination of, 

 134 



falsities resistance, 125, 126 



Cohesion of soap film, 106 



of water, 84 ft', 101 ff 



containing dissolved air, 103 ff 



Theory, 87 ff 

 Collapse of protoxylem, 97 

 Colocasiaantiquorum, Secretion by, 8, 9 

 Concentration of sap by pressure, 178 ff 



183 

 Concentration of wood -sap, 39, 45, 58 

 Condensation of water on roots, 204 

 Conducting tracts, Changes in, due to 

 heat, 54 ff 

 Structure of, 51, 52 

 Conductivity of sap, Electrical, 178, 



179, 185 

 Contamination of sap due to heat, 55 ff 



removed, 65 ff 

 Copeland's suction theory, 28, 45 

 Cotter, 106, 108 

 Cryoscopy, Beckmann's method, 155 



Thermo-electric method of, 156 ff 



Darwin, 123, 138 



Dead stems, Rise of water through, 50 ff 

 Transmission of water through, 

 53 ff 

 Diffusion through stomata, 2, 3 

 Dissolved air in tensile water, 103 ff 

 Dixon, 25, 45, 79, 99, 100, 114, 138, 



154, 173, 200, 211 

 Dixon and Atkins. 174, 188, 189 

 Dixon and Joly, 26, 45, 114, 154 

 Donny, 101, 114 

 Drop experiment, 49 



Electrical conductivity of sap, 178, 

 179, 185 

 of secreted fluid, 9 

 Theory, 83 



213 



