[Trustees of the British Museum.] 268. ? _Laccopteris polypodioides_ 360 [Trustees of the British Museum.] 269. _Matonidium Goepperti_ 362 [Editor of the Encyclopaedia Britannica.] 270. _Senftenbergia elegans_, _Oligocarpia Brongniartii_, _Trichomanes sp._, _Hymenophyllum tunbridgense_, _Sphenopteris (Hymenophyllites) quadridactylites_ 364 271. _Coniopteris hymenophylloides_ 368 [Council of the Manchester Literary and Philosophical Society.] 272. _C. hymenophylloides_ 369 273. _Coniopteris quinqueloba_ 370 274. _Coniopteris arguta_ 371 275. _Coniopteris arguta_ and _C. hymenophylloides_ 372 276. _Oncopteris Nettvalli_ 373 277. _Protopteris punctata_ 373 278. _Laccopteris polypodioides_, _L. Muensteri_, _Dicksonia_, _Onychiopsis Mantelli_, _Hausmannia Sewardi_, _H. Kohlmanni_, and _Protopteris Witteana_ 374 279. _Adiantides antiquus_ and _A. lindsayoides_ 376 280. _Onychiopsis Mantelli_ 379 281. _Dictyophyllum exile_ 381 282. _Dictyophyllum Nilssoni_, _Rhizomopteris Schenki_, _Camptopteris spiralis_, and _D. exile_ 382 283. _Dictyophyllum rugosum_ 384 [Trustees of the British Museum.] 284. _Thaumatopteris Münsteri_ 386 285. _Clathropteris meniscoides_ 387 286. _Clathropteris egyptiaca_ 388 [Editor of the Geological Magazine.] 287. _Camptopteris spiralis_ 389 288. _Hausmannia dichotoma_ 391 289. _Hausmannia sp._ 393 290. _Alethopteris lonchitica_, _Lonchopteris rugosa_, _Sphenopteris Hoeninghausi_, _Parapecopteris neuropteroides_,and _Pecopteris (Dactylotheca) plumosa_ 399 291. _Ptychocarpus unita_, _Asterotheca Sternbergii_, _Danaeites sarepontanus_, _Hawlea Miltoni_, _H. pulcherrima_, _Scolecopteris elegans_ 400 292. _Dactylotheca plumosa_ 405 293. _D. plumosa_ 406 294. _Nathorstia angustifolia_ and _N. latifolia_ 410 295. _Psaronius_ 414 296. _Psaronius infarctus_, _P. coalescens_, _P. musaeformis_,