Vol. 6^.~\ GEXERAL INDEX. 



Xerophytic character of certain coal- 

 plants and suggested origin of coal- 

 beds, 282-93. 



533 



Yaddon or Yeadown Hill (Devon), 

 109 : sect, through Daison Hill and, 

 to the base of Warberry Hill, 110. 



' Yellow ground ' fr. Boshof, vi. 



• Yellow Marsh ' Farm (E. Mendips), 

 227. 232. 



Ynysybwl colliery (Glamorgan), effects 

 of earthquake in, 359. 



Yoredale Series of Derbyshire, igneous 

 rocks in, 242. 261. 



Ystalyfera (S.Wales), reported earth- 

 quake, 352. 



Ystrad Ehondda collierv(Glamorgan), 

 effects of earthquake in, 359, 360. 



Zambezi Basin around Batoka Gorge 



(Bhodesia), geology of, 162-216 



figs. & pis. x-xvii. 

 Zamites sp. (?), fr. Inf. Oolite of Brora, 



378, 379. 

 Zcilleria quadrifida, 339 & pi. xxiv. 



cf. quadrifida, 343 & pi. xxiv. 



sithquadrifida, 343 & pi. xxiv. 



emarginata, 434. 



Zeolites in amygdaloidal Batoka 



Basalts, 184-85^ 211. 

 Zeuglodon WanJclyni, cervical vertebra 



of, 124-27 fig. 

 Zeuglodon ts &, former land-connexion 



betw. Old & TS T ew Worlds, 126-27. 

 Zigzagging chasm belowVictoria Falls, 



166-67, 185 ; origin of, 187-92 figs. 



EXD OF VOL. LXIIT. 



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