. The Salton Sea; a study of the geography, the geology, the floristics, and the ecology of a desert basin. 138 THE SALTON SEA. into the lake by the current of the Alamo River which formed a ^^^^ laid bare in this part of the lake, when visited in September 1911. In October laiz am Xxle^rX Pluchea sericea,'Baccharis gluUnosa, Heliotropium, and Sjnrotiachy. were P^ dSJ?SS^SS£ the fact that depletion of the ranks of the original invaders Xws quickly on the gentler alkaline slopes, while on the steep gravelly and ZS^SaSStii^number of species soon increases. Thus the original census of thstrand of
. The Salton Sea; a study of the geography, the geology, the floristics, and the ecology of a desert basin. 138 THE SALTON SEA. into the lake by the current of the Alamo River which formed a ^^^^ laid bare in this part of the lake, when visited in September 1911. In October laiz am Xxle^rX Pluchea sericea,'Baccharis gluUnosa, Heliotropium, and Sjnrotiachy. were P^ dSJ?SS^SS£ the fact that depletion of the ranks of the original invaders Xws quickly on the gentler alkaline slopes, while on the steep gravelly and ZS^SaSStii^number of species soon increases. Thus the original census of thstrand ofigil afTravertine Terraces included only one species, presumably by reason of delayed Fio. 3—Curvea showing changing level of Salton Sea, 1905-1912, with estimated inflow of water through Alamo and New Eivers. (After H. T. Cory.) RECESSION OF 1913. The only examinations of the strands of 1913 which were made previous to the com- pletion of the manuscript of this book were devoted to the emersions at Travertine Terraces. On February 8 the water was standing at the foot of a bank from 20 to 30 inches in height \. e 1 S VM,S,>,„»//////, - + -J3-* >'S WATER LEVEL Oct. 16, /g/g —3° Fia. 4.—Diagram showing recession of water at Travertine Terraces, 1907-1912, (which was of the maximum steepness), masses being constantly undermined by wave action. Some of the flotsam accumulated at the base was taken for a test to ascertain what seeds might have already been deposited here. About a couple of pounds of this material was placed under cultural conditions and numbers of seedlings representing Atri-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original MacDougal, Daniel Trembly, 1865-1958. Washington, D. C. , Carnegie institution of Washington
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