LIST OF FIGURES IN THE TEXT. 



PAGE 



Outlines of Christmas Island as seen from the sea .... 4 



E,eef-edge at low- water, south side of Flying Fish Cove . . 7 



jS'orth coast, looking towards Smith Point 7 



Sections across the edge of the central plateau 12 



jN'oith-West Point from the north 15^ 



Steep Point from the north 15 



Skull and mandible of Pteropiis natalis, showing dentition. 



JS'atural size 23 



Antehrachium and cai^pus of Mus macleari and Mus nativitatis. 34 



Pontodrilus ephippiger ; prostate and sperm-sac 166 



PerichcBta hrevis \ sperm- sac and spermatheca 168 



Leptoria phrygia ; part of transverse section, X 5 . . . . 211 

 Orhicella lierUotsi ,, ,, X7....215 

 Orhicella quadrangular is ^ var. columnata ; part of transverse 



section, X 1^ 217 



Prionastr^a magnifica ] part of transverse section, x 2 . . 219 



Porites, a:ff. lutea ,, ,, X 9 . . 222 



Porites lelli „ ,, X 9 . . 223 



Porites belli ; part of transverse section bored by an alga, x 9 223 



Montipora danm\ part of transverse section, x 12 . . . . 224 



Forest on central plateau 270 



Sections showing the structure of the cliff at Flying Fish 



Cove 272 



Bed of basalt resting on older Tertiaiy limestone, south side 



of Flying Fish Cove 274 



Mass of Porites in sea cliff, south of Flying Fish Cove . . 274 



Sections of cliff in Flying Fish Cove 276 



Geological map of the neighbourhood of Flying Fish Cove . 280 



Mouth of Sidney's Dale, west coast 284 



Dyke of basalt, floor of Sidney's Dale, west coast . . . . 286 



Sea-worn basalt in Waterfall (Panchoran) Bay, east coast . 286 



