General Index. 



223 



Negro sociology xxv 

 New York mollusks 71 

 Normal to conic section 137 

 Nucellus of grasses 200 



Oedematous wood 34 



Officers xxvi 



Onagraceae? 178, 186, 188, pi. 15 



Ontogeny xix 



Overcoollng tissues xxv 



Paleontology xxiv, 161 



Parabola 137 



Patliology XX 



Pollination xxiv 



Portland cement xxi 



Prairies 63 



President, address xvii, xxvi 



Pressure board 2, 7, 14, 17, pL 2 



Pressure gauges 6, 10, -pi. 1 



Pressure of wind 1 



Resistance in hydraulics xxiv 

 Rib, cervical xx 

 Rings of wood 28 

 Rock plants 60 

 Root activity 33 



Salt marshes 66 

 Sand hills 62 

 Scorching of bark 36, 40 

 Seed anatomy xix, xxv, 199 



Series dynamos 107 



Shunt dynamo, 108,/. 1 



Sociology xxvi 



Stylar movements xxiv 



Sulphur dioxide xviii 



Sun-scald 36, 40 



Surfaces, dynamo and motor 108 



Swamps 57-8 



Temperature of trees 36 

 Tissues, overcoollng xxv 

 Tornado injuries to trees 25 

 Transpiration 33, 37 

 Treasurer, report xvii, xxix 

 Trees and lichens 197 

 Trees and tornado 25 

 Trees of Kansas 68 

 Trees, temperature of 36 

 Tuberculosis xxiii 

 Turgor 34 

 Typhoid bacillus xx 



Ventilation xxii 



Water filtration xxii 



Water plants 67 



Weeds 67 



Wet leaves injured 26 



Wind pressure effects 1, 25 



Wood, abnormal 33-4 



Wood drying 38, 40 



Xerophytes 57, 60, 65 



