Cru 



100 



& Coal-Measure crust, fr. Brit. N. 

 America, xviii. 346 ; arrangem. of tubuli 

 in test of, xvii. 547; fr. 0. R. S. of 

 Forfar, xx. 415. 



Crustacea, Devon., stratigr. value of, xxiii. 

 665 ; Upper Silur., of Lanark, xxiv. 289- 

 296 & pis. ix.-x. ; Lr. Eoc. of Ports- 

 mouth, xxvii. 90-92 & pi. iv. ; in 

 Coralline Crag, xxvii. 122, 130; orig. 

 phosphates in Cambr. rocks, xxxi. 370 

 et seqq. ; (macrurous), fr. Kimeridge 

 Clay, xxxii. 47-50 & pi. vi. ; fr. Coral 

 Rag of Up ware, xxxiii. 400 & pi. xvi. ; 

 foss., xxxv. 549-556 & pi. xxvi. ; Palaaoz., 

 xxxvii. Proc. 65, 94, 162, 174, 182 & 

 209; Brit. Jurass., xxxviii. Proc. 152, 

 180, 194 & 219 ; decapod, of Oxf. Clay, 

 xlii. 542-559 & pi. xvi. 



Cruys (Forfar), kyanite-schists of, xlix. 347 

 et seqq. 



Cruziana cucurbita, sp. ncv., xvii. 71 & 

 pi. v. 



Unduavi, sp. nov., xvii. 71 & pi. v. 



Cryolite of Evigtok, xii. 140-144. 

 Cryptcenia affinis, sp. nov., xxxi. 507 figs. 



Brycei, sp. nov., xxiii. 313. 



Cryptobranchus japonicus, leg & foot of, 



xxxix. Proc. 58 fig. 

 Cryptoccenia, peculiar nat. of coenenchyma 



in, xxxix. 178 ; redefined, xxxix. 194 ; 



gen. aff. of, xlii. 131. 

 microphylla, sp. nov., xxxix. 179 & 



pi. vii.; xl. 708. 



■ obeliscus, xl. 708. 



plana, sp. nov., xl. 707. 



Pratti, xxxix. 179. 



Rigauxi, sp. nov., xl. 707. 



tuberosa, xxxix. 179. 



sp. (Oolite of Boulonnais), xl. 708. 



Cryptocrinites *cerasus, ii. (Part 2) 38 & 



pi. iii. ; see also Sycocrinus. 

 Cryptodraco subst. for Cryptosaurus, xlv. 



46. 

 Cryptogamous plants, tissues in 'mineral 



charcoal,' xv. 629 & pi. xvii. 

 Cryptolithus, see Trinucleus. 

 Cryptomerites (?) divaricatus, gen. & sp. 



nov., vii. 190 & pi. xiii. 

 Cryptosaurus eumerus, gen. & sp. nov., 



femur of, xxxi. 149-151 & pi. vi. ; see 



also Cryptodraco. 

 Crvptostomata, subord. nov., xxxviii. Proc. 



245. 

 Crystals, microsc. struct, of, xiv. 242, 



453-500 & pis. xvi.-xix. ; relat. of no. 



of cavs. to rate of format., xiv. 460; 



Sorby's work discussed, xiv. pp. cxxvii 



et seqq., xv. p. xxxiv ; roundg. of, xxxv. 



329, 332 et seqq. ; growth & struct, of, 



xxxv. Proc. 61; porphyritically inch in 



basalt-glass, xxxix. 459 & pi. xiii. ; ac- 



tiou of surround, magma upon, xlii. 



81 ; embryol. of, xliii. Proc. 67 ; 



struct. -planes in, xliii. Proc. 70, 71; 



growth of, in igneous rocks after their 



consolid., xlv. 175 188 & pi. vii. ; en- 



lai'gem. of detrital fragm. of, xlv. 176 ; 



enlargem. of cryst. in igneous rocks, 

 xlv. 177. 



Crystal-building in igneous rocks, condit. 

 of, xli. Proc. 80 et seqq. ; in artificial 

 glasses, xli. Proc. 87 et seqq. 



Crystalline Limestone Series (Lauventian), 

 of Cape Breton, xlii. 517. 



Crystalline schists, etc., nr. Oporto, v. 142, 

 144; of Himalayas, vii. 301; rocks of 

 Alps, v. 162-164, xlv. 67-111 figs. ; of 

 Andes, vi. 364-366; of Spain, vi. 406 ; 

 # of Norway & Germany, limest. in, 

 ix. (Part 2) 4-13, 15-18 ; in Canada E. 

 of Rocky Mts., xi. 500 et seqq. ; in New 

 Zealand, xi. 521 et seqq. ; of Shetland, 

 xv. 391; metamorphic orig. of some, xv. 

 490; of Highlands, coincid. betw. stratif. 

 & foliat. in, xvii. 232-240; comp. of, 

 xxiv. p. lxxii; cryst. cleavage & foliat., 

 xi. p. xlix et seqq. ; cleavage in relat. to 

 jointg. of rocks, xv. 100 ; schists of 

 Sutherland, etc., xv. 382, 387; meta- 

 morphic, in N. Gippsland, xxxv. 11; 

 of Mt. Ida, xxxix. 627; cryst. constit. 

 in clay-slate, prob. orig. of, xxxv. 161 ; 

 rocks of Madagascar, xlv. 308 ; schists 

 of Central Highlands, stratigr. & age 

 of, xli. Proc. 50 et seqq. ; generally, age 

 of, xlii. Proc. 107; in Essex drift, xliii. 

 359 ; alleged convers. into igneous rocks 

 in Galway, xliii. 517-524 figs. ; of 

 Malvern Hills, xliii. 525-536 figs., xlix. 

 398-425 figs.; secondary min. prod, at 

 shear-zones in, xlv. 475-503 & pi. xvi. ; 

 relat. to Mesoz. rocks in Lepontine Alps 

 xlvi. 187-240, 1. 285-302 figs.; rocks' 

 of Lizard, xlv. 519-544 figs., xlvii. 

 464-499 figs. & pi. xvi.; papers on, 

 summarized, 1. Proc. 102. 



Crystallites in fulgurite-glass, xlv. 63 & 

 pi. iii. 



Crystallization, slaty cleavage not conn. 

 with, v. 116; in stucco-casting, xiii. 

 11-13 ; formg. or wideng. fissures, xxxii. 

 169 ; strain in conn, with, xl. 340-346 & 

 pi. xviii. ; principles wh. have governed 

 crystalliz. of cryst. rocks, xlii. 78. 



Crystallized minerals, *format. of, ix. (Part 

 2) 29-31. 



Ctenacanthus cequistriatus , sp. nov., xxxv 

 185 & pi. x. 



hyhodoides , sp. nov., ix. 280 & pi. xii. 



nodosus, sp. nov., ix. 281. 



2 spp. (Lr. Coal Measures), xxxii. 



335. 



Ctenicerium Plissus, sp. nov., x. pi. xvi. 



Hylastes, sp. nov., x. pi. xvi. 



Ctenis Leckenbyi, sp. nov., xx. 78 & pi. x. 



Ctenodonta Bertrandi, xx. 301 & pi. xv. 



cambriensis, xxix. 47 & pi. v. 



menapiensis, xxix. 47 & pi. v. 



— — spp. (Upper Silur.), xvii. 69 & pi. iv.; 

 (Budleigh Salterton), xxx. 48 & pi. vi. 



Ctenodonta-hed (Silur.) in Rhyinney Quar- 

 ry, list of foss. fr., xxxv. 482. 



Ct'modus, comp. & struct, of bony palate 

 in, xxx. 772-77 '5 & pi. xlvii. 



