178 Index of Authors 



SHIPLEY, PAUL G., 223. Histology of the Poison Glands of Bufo agua and 



its bearing upon the formation of Epinephrin within the Glands 16, 83 

 SHIVE, J. W., on Non-absorbing Atmometer. Y. B. 13. 

 SHREVE, EDITH B., 194. The Daily March of Transpiration in a Desert 



Perennial 14, 125 



, on Apparatus for determining Temperature of Leaves. Y. B. 17. 



, on Autonomic Movements of Cylindrical Stems of Opuntia. Y. B. 



11, 12, 14, 15. 



, on Determination of Leaf-temperatures. Y. B. 11. 



, on Investigations of the Imbibition of Water by Gels. Y. B. 16, 17. 



, on Transpiring Power of Plants. Y. B. 10, 11, 12, 13, 16. 



SHREVE, FORREST, 199. A Montane Rain-forest: A Contribution to the 



Physiological Plant Geography of Jamaica 15, 126 



, 217. The Vegetation of a Desert Mountain Range as Conditioned 



by Climatic Factors 16, 126 



, 284. Distribution of Vegetation in the United States, as related to 



Climatic Conditions 21, 124 



, on Altitudinal Gradients of Growth-rate. Y. B. 12, 16. 



, on Climatic Control of Growth and Distribution. Y. B. 10, 15, 16. 



, on Direct Effect of Rainfall on Tropical Hygrophilous Vegetation. 



Y. B. 13, 16. 



, on Geobotany of the Santa Lucia Mountains. Y. B. 17. 



, on Germination and Establishment of Desert Perennials. Y. B. 9. 



, on General Features of Vegetation in the Mohave Desert. Y. B. 14. 



, on Influence of Cold-air Drainage on Distribution. Y. B. 11. 



, on Influence of Low Temperature on Giant Cactus. Y. B. 10. 



, on a Map of Vegetation of United States. Y. B. 15. 



, on Physiology of Plants. Y. B. 9. 



, on Precise Evaluation of Rainfall Records. Y. B. 11. 

 , on Relation of Altitude and Habitat to Transpiring Power of 



Plants. Y. B. 14. 



, on Relation of Evaporating Capacity of the Air to Plant Distribu- 

 tion. Y. B. 8. 

 , on Soil-moisture Evaporation Index and its Relation to Vegetation. 



Y. B. 11, 13. 

 , on Soil-temperature Survey of the United States and Canada. 



Y. B. 17. 

 , on Vegetation of Santa Catalina Mountains and of United States. 



Y. B. 9, 10, 13. 



, on Vegetation of an Imperfectly Drained Desert Valley. Y. B. 16,17. 



, on Vegetistic and Floristic Features of the Pinaleno Mountains. 



Y. B. 14. 



, on Vital Statistics of Desert Plants. Y. B. 10, 11, 16. 



, on Winter Temperature Phenomena in the Santa Catalina Moun- 

 tains. Y. B. 12, 14. 



SHULL, GEORGE H., 24. Mutants and Hybrids of the Oenotheras 3, 97, 117 



,30. Development of Sium cicutaefolium 3,97, 121 



, 81. Mutations, Variations, and Relationships of the Oenotheras. 6, 98, 117 



, 112. Bursa bursa-pastoris and Bursa heegeri ; Biotypes and 



Hybrids 9, 99, 121 



, concerning Investigations at Cold Spring Harbor. Y.B. 4,5,6,8,12,13. 



SILVESTER, CHARLES F., 252. Fishes New to the Fauna of Porto Rico, with 



Descriptions of Eight New Species 19, 145 



, on Fishes New to the Fauna of Porto Rico. Y. B. 14 



SLACK, EDGAR P., 155. Temperature Fluctuations in Different Parts of the 



Human Body 12, 89 



SLADE, W. A., 88. Writings on American History, 1903 4, 67 



SLIGHTER, C. S., 107. The Rotation Period of a Heterogeneous Spheroid. 9, 55 

 SMALL, J. K., 24. Mutants and Hybrids of the Oenotheras 3, 97, 117 



