459. _Cladoxylon mirabile_; _C. dubium_; _C. taeniatum_; _Syncardia pusilla_ 202 460. _Cladoxylon Kidstoni_; _C. mirabile_ 206 461. _Völkelia refracta_ 209 462. _Protopitys Buchiana_ 211 463. _Poroxylon Edwardsii_. C. E. Bertrand and F. W. Oliver 216 464. _Poroxylon Edwardsii_; _P. Boysseti_. C. E. Bertrand 218 465. _Cordaites_ leaf. (_C. Felicis._) R. Kidston 228 466. _Cordaites principalis_; _Artisia transversa_. R. Kidston 231 467. _Cordaites lingulatus_ 234 468. _Cordaites_ (_Rhizo-Cordaites_); _Cordaites circularis_; _Cordaites_ sp. cf. _C. Lacoei_; _C. crassifolius_ 237 469. _Cordaites aequalis_; _C. Clerci_. M. Zalessky 239 470. _Cordaites_ (_Noeggerathiopsis_) _Hislopi_. G. R. Wieland. 241 471. _Cordaites_ (_Noeggerathiopsis_) _Hislopi_. [Geological Society.] 241 472. _Cordaites_ (_Noeggerathiopsis_) _Hislopi_. [Geol. Surv. India.] 242 473. _Cordaites_ stem 246 474, 475. _Dadoxylon materiarum_ 257 476. _Dadoxylon Pedroi_ 259 477. _Cordaites_ root 262 478. _Cordaites?_ root. T. N. Leslie 263 479. _Cordaianthus_. F. E. Weiss 265 480. _Cordaianthus Pitcairniae_; _C. Volkmanni_ 266 481. _Cordaianthus Grand’Euryi_; _C. Williamsoni_; _C. Zeilleri._ C. E. Bertrand 268 482. _Cordaianthus microsporangia_ 270 483. _Mesoxylon Sutcliffii_ 272 484. _Pelourdea vogesiaca_. [Geologists’ Assoc.] 279 485. _Titanophyllum Grand’Euryi_ 284 486, 487. _Pitys antiqua_ 286, 287 488. _Pitys primaeva_ 288 489. _Callixylon Trifilievi_. M. Zalessky 292 490. _Mesopitys Tchihatcheffi_ 296 491. _Antarcticoxylon Priestleyi_ 298 492. Diagram of a synthetic type of seed 303 493. _Lagenostoma ovoides_; _L. Lomaxi_; _Physostoma elegans_; _Telangium Scotti_; _Stephanospermum akenioides_ 311 494. _Stephanospermum akenioides_; _Conostoma oblonga_; _Gnetopsis elliptica_; _Physostoma elegans_; _Mitrospermum compressum_ 314