26 Index. 



Peirce, G. J. — What is the Use of Respiration? 193 



The Botanical Aspects of Stanford University 245 



Pool, V. W.— The Present Status of Plant Pathology 205 



Price, H. L. and Drinkard, A. W. — Inheritance in Tomato Hybrids... 10 



Ramaley, F. and Robbins, W. W. — A Summer Laboratory for Mount- 

 tain Botany 105 



Robbins, W. W. — See Ramaley and Robbins. 



Sauer, L. W. — Quercus Leana; a Hybrid Oak 198 



Shaxv, C. H. — Vegetation and Altitude 63 



The Causes of Timber Line on Mountains; the Role of 



Snow 169 



Shull, G. H. — A Simple Chemical Device to Illustrate Mendelian 



Inheritance 145 



Spalding, V. M. — Cultivated Plants in the Arid Southwest 18 



Standlay, P. C. — A Witch's Broom of the Desert 61 



Thornber, J. J. — Relation of Plant Growth and Vegetation Forms to 



Climatic Conditions 1 



Vegetation Groups of the Desert Laboratory Domain.... 289 



Transeau, E. N. — Vegetative Problems Involving Climate 102 



Successional Relations of the Vegetation About Yar- 

 mouth, Nova Scotia 271 



Books and Current Literature 



21, 67, 89, 110, 138, 166, 183. 210, 238, 262, 293 



Notes and Comment 47, 72, 118, 141, 189, 214, 244, 267, 297 



