195 



Ice 



Hylteosaurus, its relat. w. Macellodus, x. 



425 ; (?) tibia & humerus of, xxx. 516- 



520 & pi. xxxi., xxxv. pi. xii. ; (?) ilium 



of, xliv. 53 fig. 

 Hylerpeton comp. w. Dendrerpeton, xix. 



470. 

 Dawsoni, gen. & sp. nov., xviii. 241 



& pi. ix. 

 Sylonomus aciedentatus, gen. & sp. nov., 



xvi. 275 figs., 276, xviii. 7, 239 & 



pi. ix. 

 Lyellii, sp. nov., xvi. 274 figs. ; xviii. 



6, 238 & pi. ix., 242 & pi. x. : xlvii. Proc. 



169. 



Wymani, sp. nov., xvi. 276 figs. ; 



xviii. 6, 240 & pi. ix. 



Hylospongia, gen. nov., xxix. 79. 



Hylton Castle (Durham), Phyllopora 



multipora fr., xxxviii. 347-349 fig. 

 Hymenocaris, xix. 90 fig., 91. 



vermicauda (?) tracks in Linqula- 



Flags, x. 208-211 fig. ; in Lr. do., xxxvii. 

 Proc. 80. 



Hymetwphyllites curtilobus, sp. nov., 



xviii. 321 & pi. xv. 

 delicatulus, xl. 593. 



Gersdorffii, xviii. 322 & pi. xv. 



pentadactyla, sp. nov., xxii. 159. 



quadridactylites, xl. 596. 



Hyopotamus bovinus, gen. & sp. nov., iv 



103-141 & pis. vii.-viii. 



Pictetirei. to Dacrytherium, xlviii. 2. 



vectianus, sp. nov., iv. 103-141 & 



pi. vii. 

 Syopsodus, app. ident. \v. Micro chcerus, 



xli. 529-531. 

 Hyotherium, gen. aff. of, xliii. 22. 



Meissneri *in brown coal of Hart 



xix. (Part 2) 31. 



perimense, sp. nov., jaw of, xliii. 19- 



23 fig. 



sindiense, aff. of, xliii. 20, 21. 



Hyperammina vagans, xxxix. 26 & pi. ii. 

 Hypertonia (subgenus of Murcliisonia), 



char, of, xlviii. 564. 

 Hyperite, of Madagascar, xlv. 342. 

 Hyperodapedon, post-Palseoz. age of, dis- 

 cussed, xxv. 138-141, 148 et seqq. • aff. 

 & terrestrial habits of, xxv. 147; fr. 

 S. Devon, xxv. 146, 156. 



Gordoni, discov. of, xv. 435, 460 ; 



redescr., xxv. 141-144; [? 2 varr. 1, xxv! 

 144 figs., 146 ; further "obs. on," xliii. 

 675-694 figs. & pis. xxvi.-xxvii. ; pre- 

 maxilla fr. Devon coast, xliv. 163 

 319. 

 Syperoodon, sp. fr. Red Crag, xliii. 14 fig. 

 Hypersthene, chem. anal, of, 1. 22. 

 Hypersthenite of Mosedale Crags & Lan°- 

 Dale, xxxii. 17, 21 & pi. ii. ; chem! 

 anal, of same, xxxii. 24. 

 Hypertroph}% cause of change in an or- 

 ganism, xlv. 163. 

 \ Hypogene ' rocks in Egypt, iv. 328. 

 Hypometamorphic ' rocks of Anglesey, xl. 

 567, 582. 

 Syposaurus Eoaersii, gen. & so. nov v 

 383 & pi. xi.* 



Hypothyridae, subdiv. of Terebratula, ii. 



384, 386. 

 ' Hypozoic ' rocks, iii. 136. 

 Sypsiloplwdon Foxii, gen. & sp. nov., 



xxvi. 3-12 & pis. i.'-ii. ; aff. w. birds, 



xxvi. 28 ; anatomy of, xxix. 522-532 & 



pi. xviii., xxx. 18-23 & pi. iii. 

 Sypsiprymnopsis rhceticics, gen. & sp. 



nov., xx. 409-412 figs. 

 Sypsiprymnus comp. w. Plagiaulax, xiii. 



263 et seqq., xviii. 355 et seqq. 



Gaimardi, xiii. 266, 278 fi£. ; xviii. 



366 figs. 



Grayii, aff. w. Thylacoleo, xxiv. 310, 



313 fig. 



JSunteri, premolar of, xx. 411 fig. 



minor, premolars of, xx. 411 figs. 



Hypsocormus Leedsii, sp. nov., xlvi. Proc. 8. 



tenuirostris, sp. nov., xlvi. Proc. 8. 



Hypsodon, gen. diff. fr. Portheus, xxxiii. 



507. 



lewesiensis, xxxiii. 508. 



Hyracotherium, gen. aff. w. Pliolophus, 



xiv. 65, 66. 

 leporinum comp. w. Pliolophus vulpi- 



ceps, xiv. 58, 59. 

 Hytanahan (Brazil), iron-sandst. of, xxxv. 



771, 772. 

 Hythe (Kent), sections below Chalk nr., 



1. 179-189, iii. pi. xii. ; Punfield Beds (?) 



at, xxvii. 221. 



I'Awsoh, E., obituary of, xliv. Proc. 48. 

 Ibbetsox, L. L. B. (& E. Foebes), section 

 betw. Blackgang Chine & Atherfield 

 Point, i. 190-197. 



— ' , Orig. of Veins of Gold in Quartz 



& other Rocks Tabs.], xii. 384. 



> obituary of, xxvi. p. xli. 



Ibex (?) fr. Tertiary of Malaga district, xv. 



602. 

 Ice, packing of, in St. Lawrence River, ii. 

 422-426; boulders transp. by, iv. 318- 

 323, v. pp. xxviii-xxx, vii. 135, viii. 

 pp. xxv-xxviii, ix. 308, xiii. 189, xiv. 264, . 

 xxvi. 525 et seqq. ; stranded, causg. 

 contort, of drift, vii. 30 ; half-fioatg. ice, 

 polishg. of rocks due to, viii. 28. 

 Ice, coast-, drifts formed by, xi. 119, xiii. 

 59; floating, Boulder Clays deposited 

 from, xiv. 263, 264, xxvi. 103 et seqq. ; 

 causg. rock-erosion in Scotland, xviii. 

 164-184; anchor-ice, excav. action of, 

 xx. 128; ice-action formg. & preservg. 

 lakes, xx. 463-465. 

 Ice, Arctic, physics of, xxvi. 671-701; 

 marks in Newfoundland, xxvi. 704; 

 import, of ice in mouldg. pres. earth- 

 surface, xxix. pp. li-lxxviii. 

 Ice, friction of ice upon, apparatus for 

 determg. heat evolved by, xxxi. p. lxxxiii ; 

 inland, of Greenland, xxvi. 674, 677, 

 xxxiii. 144 ; action (of coast-ice) on oscil- 

 lating area, xxxiii. 929-931; distrib. 

 o 2 



