292 



THE PLANT WORLD. 



58. 84, 117, 130, 142, 161, 169, 



194. 

 Orchids of Vermont, 73. 

 Orton, W. A., 20, 21. 

 Osterhout, C. E., 80. 

 Ovary in grasses, Development of, 



48. 

 Panama Hat Industry, 45. 

 Patagonian Flora, the, 97. 

 Pedregal, the, 285. 

 Peirce, G. J., 191. 

 Penang, Botanic Garden of, 135. 

 Physiology of Stomata, 143. 

 Pima Caiion and Castle Rock in 



the Santa Catalina Mountains, 



251. 

 Pinchot, G., 288. 

 Piper, C. v., 268. 

 Piper's Flora of Washington, 44. 

 Pistache, 70. 

 Plan, a simple, for Collectors of 



Ecological Sets of Plants, 40. 

 Plant Collectors, Suggestions to, 



40. 

 Pollard, C. L., 167. 

 Pond, R. H., 142, 192. 

 Poisonous Qualities of the Yellow 



Ladies' Slipper, a Note on, 189. 

 "Postelsia," 92. 

 Potato, A New, 46. 

 ^rimroses, Evening, Relation of 



Injury to Fasciation in, 145. 

 ^rinceton University, 142; Expedi- 

 tions to Patagonia, 97. 

 Paget Sound, 173. 

 Pursh, Nuthtall and, and some 



early spring flowers of Colorado, 



80. 

 Reed, H. S., 210, 279. 

 Relative Transpiration in Cacti, 



110. 

 Richards, H. M., 120. 

 Round trip. A, between Iowa and 



Puget Sound, 49; 173, 237. 

 Roselle, 266. 

 Ross, W. H., 214. 

 Rowlee, W. W., 19. 

 Salton Sea, 70, 93, 168. 

 Schaffner, .T. H., 90, 191. 

 Schenck, Jacob, 46. 

 Schreiner, O., 210. 

 Schrenk, H. von, 20, 168. 

 Seed, The, a Chapter in Evolution, 



64. 

 Seeds, leguminous, hardness and 



impenetrability of, 68. 

 Seasonal Activities of Plants, Fac- 

 tors Affecting the, 217. 

 Shaw, C. H., 20. 

 Shear, C. L., and Anna K. Wood, 



20. 

 Shreve, Forest, 21. 



Shull, G. H., 19, 120. 



Singapore, Botanic Garden, 130. 



Soil Studies, New, 219. 



Soils, 143. 



Spalding, Mrs. E. S., 144; V. M., 

 11, 40, 139, 144, 208, 216. 



Spring Flowers of the Arizona 

 Desert, 63. 



Stanford University, Leland Jr., 

 the Marine Biological Labora- 

 tory of, 245. 



Stearns, F.-L., 43. 



Stebbins. C. A., 69. 



Stevens, F. L., 20. 



Stewart, F. L., 19. 



Stomata, Physiology of, 143. 



Storm, a Tropical, Some Effects 

 of on Vegetation, 67. 



Suggestions to Plant Collectors, 

 40. 



Sycamore Trees, Diseases of, 213, 

 265. 



Swingle, W. T., 70. 



Teratologi, Flower of Campanula, 

 265; Notes, 186. 



Texas, Vegetation of, 94. 



Thomson, R. B., 19. 



Thornber, J. J., 167, 205. 



Tokyo, Botanic Gardens of, 30, 

 53. 



Tower, W. L., 139. 



Tracy, S. M., 19. 



Transeau, E. N., 19, 96, 167, 192. 



Transpiration in Cacti, 110. 



University of Arizona, 120; of Chi- 

 cago, 143; of Montana Biological 

 Station. 168; of Washington, Ma- 

 rine Station of, 119. 



Underwood, L. M., 143. 



Variation. Discontinuous, and the 

 Evolution of Seeds, 64. 



Vegetation Potential. 47. 



Vinson, A. E., 259. 



Visits to Some Botanic Gardens 

 Abroad, 27, 84, 117, 130, 161, 169, 

 193. 



Vries, H. de, 191. 



Walker, Elda, R., 48, 192. 



Wheeler, C. F., 289. 



White. J. H., 20. 



Whitford, H. N., 120. 



Wild Flowers of the "Tip-Top" 

 Bottom, 276. 



Wood, Anna K., C. L. Shear and, 

 210. 



Woodward, R. S., 119. 



Yamanouchi, S., 66. 



York, H. H., 71. 



Zacualpa, La, Rubber Plantation, 

 6. 



Zoological Congress, Seventh In- 

 ternational, 120. 



