Sie 



354 



Sieboldtia maxima, dorsal vertebra of, 

 viii. pi. iv. 



Sief, Mte. (S. Tyrol), xlix. 18 et seqq. w. 

 section, 60 et seqq. 



Sieger, R., Rise & Fall of Lake Tan- 

 ganyika, xlix. 579-582. 



Siena (Tuscany), Tert. of district, i. 284, 

 v. 295 ; section to Castello San Gemi- 

 niano, v. 295 ; Tert. foram. fr., xvi. 295, 

 297 et seqq. 



Sierra de Gador (Andalusia), sections, xv. 

 588 ; Triass. foss. discov. in, xxxviii. 

 Proc. 242. 



Sierra de Guadarrama (Castile), section 

 S. of Cabanillas, xx. 206. 



Sierra Morena (Spain), section fr. E. end 

 to Sagra Sierra, xx. 199 ; do. across, xx. 

 200 ; pyritic region of, xli. 245. 



Sierra Nevada (California), section to 

 Pacific Ocean, x. 310; aurif. conglom. 

 of, xvii. 404. 



Sierra Nevada (Spain), mica-schists, etc. 

 of, xiv. 130 ; sections, xv. 588. 



Sigaretus excentricus, sp. nov., xxxii. 

 519 & pi. xxix. 



Sigillaria, supp. specim. of, ii. 139 ; fr. 

 Dukinneld, ii. 390-393 fig. ; fr. Wigan, 

 & spores embedded in its roots, vi. 17-21 

 figs.; (?)fr. E. Virginia, iii. 279, 286 figs.; 

 fr. Cape Breton, iii. 432, 434, v. 354-360 

 figs., vi. 128-132 figs.; at S. Joggins, 

 x. 30, 32, 38 figs. ; fr. Brit. N. America, 

 xv. 69 ; in Coal Measures of Nova Scotia, 

 xxii. 128 ; tissues in ' mineral charcoal,' 

 xv. 631, 633 & pis. xvii. -xx. ; do. in com- 

 pact coal, xv. 638 ; mode of growth of, 

 xv. 640 & pi. xx. ; fructif. of, xxii. 

 132; struct. & aff. of, xxv. 248-254 & 

 pi. x., xxvi. 165, 488, xxvii. 147-154 & 

 pis. vii., viii., & x. ; stump of, at 

 Wadsley, xxxi. 459 ; diff. types of, xxxiii. 

 840, 841. 



■ {Favularia) bretonensis, sp. nov., 



xxii. 148 & pi. vii. 



Brownii, sp. nov., xvii. 522-524 ; xxii. 



146 & pi. vi. 

 catenoides, sp. nov., xxii. 



pi. vi. 

 ■ (Favularia) elegans, xxii. 



pi. vii. ; xxv. 248 et seqq. 



eminens, sp. nov., xxii. 148 & 



■ palpebra, sp. nov., xviii. 



pi. xiii. 



planicosta, sp. nov., xxii. 147 & pi. vi. 



(Phytidolepis) scutellata, xxii. 146 



& pi. vi. 



simplicitas, xviii. 308. 



striata, sp. nov., xxii. 147 & pi. vi. 



— — (Asolanus) sydnensis, sp. nov., xxii. 



147 & pi. vii. 



— — ■ Vanuxemii, xviii. 307 & pi. xii. 



vascularis, sp. nov., xviii. 106-112 & 



pis. iv.-v. 



147 & 

 146 & 



pi. vi. 



307 & 



sp. 



wii. (Part 2) 102. 



Signett (Oxon), deep boring at, xlii. 303. 

 Sikkim (N. India), glaciers, etc. of, xxxv. 



121. 

 Silchar, see Cachar. 



Silchester (Berks) , type of Southern Drift, 

 xlviii. 37; section to Stoke Row, xlix. 

 311. 



Silesia, *Coal Measure flora of, vi. (Part 2) 

 13-22 ; *Grauwacke or ' Transition ' 

 flora of, vi. (Part 2) 35-40; *fauna of 

 Culm & Cart). Limestone in Lr., xxvi. 

 (Part 2) 13-16 ; marine beds in Lr. Coal 

 Measures of Upper prov., xxxiii. 638. 



Silica, branchiae of Trigonice pres. in, 

 iv. p. cxiv ; solut. of sil., v. pp. lxxix- 

 lxxxi ; attract, of organic matter for, v. 

 326-328 ; orig. of, in organic struct., v. 

 324-326 ; der. fr. deep-sea sponges, 

 xxxvi. 74 et seqq. ; amorph. & chalced., 

 in Carb. Limest. Series at Clifton, xliv. 

 194 fig. & pi. viii. ; orig. of same, xliv. 

 196; colloid, in Lr. Chalk of Berks & 

 Wilts, xlv. 403-421 w. chem. anal.; 

 *in igneous rocks, xv. (Part 2) 15 ; 

 in pluton. do., diagr. illustr. relat. 

 betw. bases and, facg. xlviii. 116. 



Silicates of iron, as colourg. agents in rocks, 

 xxiv. 386 et seqq. w. chem. anal.; 

 hydrous sil., Palaeoz. foss. assoc. with, 

 xxxv. 58. 



Siliceous oolite, ii. 436, 1. 92 ; do. fr. Cop- 

 ford, viii. 191 ; concretions in NummuL 

 Limest. of Egypt, iv. 334 ; do. in 

 Barbados rocks, xlviii. 175 ; silic. & sil.- 

 calcar. earths ibid., xlviii. 174 ; minute 

 constits. of same, xlviii. 179; chem. 

 anal, of same, xlviii. 187, 188 ; foss. fr, 

 same, xlviii. 193 ; zoophyte (Alcyonites), 

 v. 319-328 ; silic. mineraliz. of corals, 

 xx. 364 et seqq. ; calcar.-silic. mineraliz, 

 of corals, xx. 369 et seqq. ; silic. nodules, 

 in Chalk, struct, of, xv. 193; sponge- 

 spicules repl. by CaC0 3 , xxxiii. 250, 252, 

 xxxix. 550, 554 ; encrusts, formed by 

 thermal springs comp. w. those in amyg- 

 daloids, etc., xxxiv. 73-85 & pi. iv. ; 

 deposits fr. Steamboat Springs, xxxv. 

 391,392. 



Silicification of plant-remains, xxvi. 353— 

 354 ; of sponges, xxix. 76, 79 et seqq. ; 

 of Stromatojpora, xxxv. 54 ; in nodular 

 felsites, its effect on microsc. struct, of 

 rock, xlv. 253, 254; so-called, of rhyo- 

 lites in Shap Granite area, xlvii. 303. 



Silicified earths of Barbados, xlviii. 175 \ 

 wood in Egypt, iv. 335, *xv. (Part 2) 

 13 ; of Egypt. & Libyan deserts, iv. 

 349-357, 1. 534, 536 ; orig. of same, L 

 545, 517 ; in Zanzibar, xviii. 449 ; in 

 Red Beds of S.E. Africa, 1. 552 ; in 

 N.E. Bohemia, xix. 3U3 ; of Lough 

 Neagh, xli. 88; in Essex drift, xliii, 

 360. 



Sill, use of term in lead-mining districts, 

 xxxiii. 407. 



Sills in Lr. O. R. S. of Scotland, xlviii. 

 Froc. 76 w. chem. anal., 91 ; Carb. do., 

 ibid., xlviii. Proc. 122, 140. 



Sille-le-Guillaume (Sarthe), section to St. 

 Pavace, xx. 214. 



Silliman, B., *Chem. Comp. of Calc 

 Corals, ii. (Part 2) 128-129. 



