GENERAL INDEX 



531 



Westmoreland Morass (Jamaica), vegeta- 

 tion, 16, 106 



West- Wind Drift Current and the indica- 

 tions of bottle-drift, 60, 295-300, 305- 

 312 



White. Dr., on the source of the flora of 



St. Helena, 460 

 Sea, West Indian seed-drift on its 



shores, 36, 78 

 Whymper, ascending air-currents on the 



Andes, 425 

 Wiegmann's Archiv fur Naturgeschichte, 



362, 368, 425 

 Wight, Isle of; stranding of a West 



Indian seed, 28 

 Wilkes, Captain, bottle-drift in the 



Southern Ocean, 49, 300 

 Willdenow, on the West Indian home of 



Acacia farnesiana, 167, 168 

 " William Torr," wrecked in Davis 



Strait ; drift of casks, 50 

 Wilser, L., on the north polar centre of 



dispersal, 325 

 Wind; dispersal of seeds and spores, 



354, 422-425, 439; seeds of the maho- 

 gany tree carried by the wind, 243; 



ascending air-currents on mountains 



as seed and spore carriers, 425, 439; 



effects of wind-pressure on shrubs in 



the Turks Islands, 446. 

 " W. L. White," derelict schooner, drifted 



across the North Atlantic, 472 

 Woad (Isatis tinctoria), early cultivation 



in the Azores. 397 



Woodwardia; W. radicans, 370, 375; 



W. virginica, 378 

 Worm, O., an old Danish naturalist; on 



Scandinavian tropical seed-drift, 21, 



35, 45 



Wortley, E. J., on Hymensea courbaril 

 in Jamaica, 140 



Xerophily and a littoral station, 228, 229, 

 238, 239. For further references see 

 Littoral plants (c); and for a discus- 

 sion of xerophily as a product of later 

 geological ages, due to the progressive 

 differentiation of climate, see p. 319. 



Ximenia, 83, 253 ; X. americana, 87, 92, 

 252 



Yew, in the Azores, 397, 437. See Taxus 

 baccata. 



Yucatan, bottle-drift stranded, 53, 466. 



See Central America, Honduras, 



Nicaragua. 

 Strait, traversed by drift brought 



by the equatorial currents, 58, 70-72 

 Yuccas, 168 



Zanthoxylum, prickles in beach-drift, 

 164 



Zaragoza mangrove (Conocarpus erectus), 

 201 



Zeleny, J., on the falling rates of spores, 

 423 



Zingiberacese, 315 



Zygophyllum, in the Canaries, 448, 449 



Additional Note on St. Helena. — Through an oversight, reference has not been 

 made on p. 460 to the record by Burchell and Melliss of the frequent stranding of 

 seeds of Entada scandens and Guilandina bonducella on the windward or southern 

 coasts of this island (Chall. Bot. iii, 80; iv, 300, 302). The indications of the 

 currents are that these seeds are most probably derived through the agency of the 

 South Atlantic Connecting Current from Brazil, though a possible source from the 

 East African coast around the Cape cannot be ignored. 



