363 



Spi 



Sphceroma serratum comp. w. foss. forms, 



xxxv. 348 & pi. xiv. 



sp. (Coal Measures), xix. 79 fig. 



Sphceronites aurantium, *ii. (Part 2) 30- 



32&pl. iii. 

 Sphceronites-Limestone in Sweden, iii. 5 



et seqq. 

 Sphcerophthahnus pecten, xxi. 481 figs., 



482. 

 Sph&rosiderites identif. as Nautilus, v. 



263. 

 Sphcei'ospongia, outer form & struct, of, 



xl. 816 & pi. xxxvii. 



tessellata, xl. 840 & pi. xxxvii. 



Sphargis, aff. w. Psej>hophorus, xxxvi. 



406 et seqq. 

 Sphene in Donegal Granite, xviii. 416 ; in 



sheared rocks of Malvern Hills, xlv. 



490; in Shap Granite, xlvii. 276. 

 Splienodon, aff. w. Hyperodapedon, xxv. 



147, xliii. 676 et seqq. ; views of skull, 



xliii. 682, 683. 

 Sphenodontia, group def., xliii. 691. 

 Sphenodontidae, family def., xliii. 692. 

 Sphenonchus (TZyhodus) obtusus, sp. nov., 



xxxvii. 420 & pi. xxii. 

 Sphenopliyllum antiquum, xviii. 312. 



emarginatum, xxii. 152-153. 



— — eroswm, iii. 430. 



SchlotJieimii, iii. 430, ix. 145. 



Sphenopteris affinis, circinate vernat., 



fructif., & varr. of, xxxiv. 132 & pis. vii- 



viii. 

 antipodum, sp. nov., xxiii. 146 & 



pi. vi. 



artemisicefolia (?), iii. 429. 



canadensis, sp. nov., xxii. 156 & 



pi. xiii. 

 elongata, sp. nov., xxviii. 355 & 



pi. xxvii. 

 ■ Harttii, sp. nov., xviii. 321 & 



pi. xvi. 

 mtcheockiana, sp. nov., xviii. 321 & 



pi. xvi. 



■ Eceninghausi, xviii. 320. 



Jugleri, xx. 79. 



laiior, sp. nov., xxii. 156 & pi. xiii. 



marginata, sp. nov., xviii. 321 & 



pi. xv. 



modesta, sp. nov., xx. 79 & pi. x. 



munda, sp. nov., xxii. 156 & pi. xiii. 



■ nepJirocarpa, sp. nov., vii. 179 & 



pi. xii. 



■ obtusiloba (?), iii. 429. 



■ recurva, sp. nov., xix. 464 & pi. 



xvii. 



tridactylites, *vii. (Part 2) 97. 



sp. (Coal Measures), iii. 429. 



Sphenospondylus, gen. nov., dors, vertebr. 



of, xxxix. 55-61 figs. ; intermed. betw. 



Trachodon & Iguanodon, xliv. 46, 47. 

 Sphenotrochus, gen. char. & aff. of, xxvi. 



307. 



australis, xxvi. 297 & pi. xix. 



excisus, xxvi. 298 & pi. xix. 



Spheroids in felspar -porphyry of Carrick, 



xxii. 521, 523 ; in Antrim iron-ore, chem. 



anal, of, xxvi. 158. See also Spheroidal 



Spheroid-bearing granite of Mullaghderg, 

 xliv. 548-560 figs. & pi. xiv. 



Spheroidal concretions inConiston Limest., 

 ii. 113 ; in Ireleth Slates, ii. 114 ; spher. 

 state of water, xiv. 483 ; struct, in 

 granite of E. side of Dartmoor, xxv. 

 273-280 figs. ; & column. & fissile struct., 

 xxxii. 140-154 figs. ; spher. igneous 

 rock at Porthdinlle3 r n, xxxvii. 50 ; 

 struct, in Lleyn basalts, xlix. 148 ; of 

 porphyrite at Balcreuchan Port, xxxiv. 

 781; struct, assoc. w. variolitic do., 

 xlvii. 48, 60 ; in rocks at Grange Mill, 

 1. 634; do. generally, var. orig., xxxv. 

 330 ; spher. jointg. & weatherg. of Sam 

 diabases, xliv. 450. 



Spherules, poss. spores & sporangia, in 

 Pharetrospongia, xxxiii. 250, 251 & 

 pi. xi. ; oolitic, in Wenlock Limest. of 

 Rhymney district, xxxv. 501 & pi. xxiv. ; 

 spher. of iron pyrites in limest. above 

 Rhymney Grit, xxxv. 504 ; in felsite of 

 Pwll Hendre, xl. 307 ; formed along 

 cracks in vitreous rocks, xl. 343 et seqq. 



Spherulites in fused basalt, xii. 340 ; 

 hollow, & their occurr. in ancient Brit, 

 lavas, xii. 162-169 & pi. iv. ; spher. in 

 ' granulite-glass,' xii. Proc. 90 ; in 

 Ardtun tachylyte, xliv. 301, 302 & 

 pi. xi. ; in Quiraing & Bryansford do., 

 xliv. 304, 305 & pi. xi. ; in Carrock Fell 

 do., xlv. 300; in Whiteinch do., xlv. 

 627; in Lleyn felsites, xlv. 251 et seqq. ; 

 in aug.-andesites of Mull, xlvi. 362 & 

 pi. xiv. ; spher. of Skye, xlix. 183, 186, 

 1. 220, 221 ; in Arran pitchst., xlix. 550, 

 559-560 ; composite, in obsidian fr. Hot 

 Springs (Cal.), xlvi. 423-428 & pi. xvii. ; 

 hollow, in altered rocks, xlviii. 443 ; 

 orig. of, xlix. 155. 



Spherulitic felsite of Carrock Fell & Gr. 

 Lingy Hill, xxxii. 16, 20 & pi. ii. ; 

 spher. pitchst. & perlites, recent, struct. 

 of, xxxiii. 451 ; ancient, do., xxxiii. 453 

 & pi. xx. ; struct, of altered felspar- 

 crystals, xxxiv. 484 & pi. xxi. ; do. in lavas 

 of Y Glydyr Fawr, xxxv. 508-510 fig. ; 

 spher. rocks, devitr., fr. Beddgelert, 

 xxxvii. 403, 404 & pi. xxi. ; sph. rhyolite 

 of Pontesford Hill, etc., xxxviii. 121, 

 124 ; do. of Caradoc, xlvii. 540, 541 ; 

 spher. struct, in quartz-porphyries of 

 St. David's, xxxix. 315 & pi. x. ; coarsely 

 spher. rocks, alterat. of, xiii. 183-191 w. 

 chem. anal. & pi. ix. ; spher. struct, of 

 cert, rhyolites nr. Shap Granite, xlvii. 

 302, 303 ; spheral, obsidians of Yellow- 

 stone district, xxxvii. 393 et seqq. & 

 pi. xx. ; & perlitic do. fr. Pilas, xlvii. 

 530-533 & pi. xviii. ; spherul. & perlitic 

 structs., seq. of, 1. 10. 



Spicules, see Sponge-spicules. 



' Spider-leg ' gold of Queensland, xxviii. 

 296, 297 w. chem. anal., xxxiv. 435. 



Spiennes (Hainaut), Chalk of, xiii. 331. 



Spijoen-Kop(GriqualandWest),quartzites, 

 etc. of, xxx. 640. 



Spilsby Sandstone, xlix. 468 et seqq. 



2b 2 



