LIST OF niUSTRATIONS XVU 



. riG. PAGE 



553, 554. Williamsonia Leckenbyi. A. G. Nathorst. . . 439, 440 

 555, 556. Williamsonia whitbienais. A. G. Nathorst. . . 441 



557. Williamsonia sp. [Indian Geol. Survey.] .... 444 



558. William:Sonia Bkmdfordi. [Indian Geol. Survey.] . . 446 

 659. Williamsonia Carruthersi 447 



560. Williamsonia Bucklandi 449 



561. Williamsonia scoiica 450 



562-^564. Williamsonia scotica. [Royal Society.] , . 451-453 



565. Williamsonia spectabilis ; W. whitbiensis ; W. mexicana . 459 



566, 567. Wielandiella angustifolia 463, 464 



568. Wielandiella angustifolia. A. G. Nathorst. . . . 466 



569-573. Williamsonidla coronata. [Royal Society.] . . 468-471 



574. Oycadocephalus Sewardi. A. G. Nathorst 474 



575. Bucklandia anomala 482 



576. Bucklandia Milleriana 484 



577. Bucklandia Yatesii 485 



578. Bucklandia buzzardensis. [Trustees of the British Museum,] 486 



579. Bucklandia indica. [Trustees of the British Museum.] . 488 



580. 581. Colymbetes Edwardsi 492, 493 



[Trustees of the British Museum.] 



582, 583. Oycadolepis sp 495 



584, 585. Carpolithus conicus 498 



[Trustees of the British Museum.] 



586. Beania gracilis. [W. G. Carruthers.] .... 502 



587. Ptiloph/yllum pecten. [Trustees of the British Museum.] . 513 



588. 589. Ptilophyllum pecten . . ■ . . . . 514, 516 



[Gteological Surv. India.] 



590. Ptilophyllum pecten and Williamsonia Blandfordi . . 517 



[Greological Surv. India.] 



591. Ptilophyllum cutchense. [Geological Society.] . . . 518 



592. Ptilophyllum pecten 519 



593. Ptilophyllum pecten. [Geological Society.] .... 519 



594. Ptilophyllum pecten 520 



595. Ptilophyllum pecten 523 



596. Ptilophyllum pecten. [Trustees of the British Museum.] . 523 



597. Ptilophyllum boreale. A. G. Nathorst. .... 526 



598. Ptilophyllum antarcticum ; P. Anderssoni .... 527 

 .599. Zamites gigas. [Encyclopaedia Britannica.] . . . 533 



600. Zamites recta 534 



601. Zamites Buchianus ; Z. Garruthersi ; Z. Zitteli . . . 635 



602. Zamites Buchianus 536 



603. Otozamites Ooeppertianus ; O. Bechei 638 



604. Otozamites Bechei 639 



