256 



NATURE 



\_ytdy 14, I < 



probably Dinosaurian, judging from the lateral position of the 

 apertures of the skull and the characters of the teeth. The genus 

 Rhadinosaurus was founded upon the humerus and femur, the 

 latter having been regarded by Bunzel as the dorsal rib of a 

 crocodile ; the species was named R. akiinus. Oligosaiinis 

 aiit'/iis was described as presenting Lacertilian characters in com- 

 l>ination with some Dinosaurian peculiarities. The remains 

 include the humerus, femur and scapula, and two vertebra;, 

 which were regarded by Bunzel as fretal vertebrse of a Dinosaur. 

 The genus 1 loplosaurtts was founded on some vertebrte, frag- 

 ments of limb-bones, and dermal armour ; it shows, with dis- 

 linctive peculiarities, a certain resemblance to Hyheosaicrus. A 

 procrelian crocodile was represented by many parts of the 

 skeleton ; some figured by Bunzel as Lacertilian, others as 

 Crocodilian. It is remarkable for having a buttress supporting 

 the traiiSver-e process in the lumbar region. The author calls it 

 Crocoaihis procivus. Tlie specimen figured by Bunzel as the 

 ilium of his Danuliiosattrus anccps, was stated by the author to 

 be a costal plate of a large Chelonian, in which, apparently, the 

 margins of these plates remained separate through life. .Skull 

 Ijones, believed to lielong to the same animal, are .■■trongly sculp- 

 tured ; the author named the species Plmropeltus lissus. Three 

 or four species of Emydians were said to be indicated by 

 isolated plates, the largest of which was named Emys Neumayii. 

 I'he only specimen referable with certainty to a lizard is a small 

 vertebra of elongated form, regarded as indicating a new genus 

 and species, named Spondylosaurus gyacilis. Of Pterodactyls 

 there are hut fe'.v remains ; but these certainly reprepent two 

 genera. The author only describes one species, to which he 

 gives the name of Oniithocfiirus Bunzeli. There are, in all, 

 probably ten genera of Dnosaurs, and five genera of other 

 groups, making fifteen in all. The paper was supplemented by 

 a note by Prof. Suess on the geological relations of the beds at 

 Wiener Neu-tadt to those of the Gosau Valley, in which he 

 comes to the conclusion that they are older than the true 

 Turoni.m deposits, and especially older than the zone of 

 Hippurites coruH vaccimim. — On the basement-beds of the 

 Camtjri.an in Angle ey, by Prof. T. McKenny Hughes, M.A., 

 F.G.S. In this paper the author first pointed out that there 

 was in Anglesey : — (i) An upper slaty group, in which he 

 had fixed two live zones, which showed that the series be- 

 longed to the Silurian (Sedgwick's classification), and {2) a 

 lower group of slates and sand-tones in which Arenig fossils 

 had been fiund in several localities, and Tremadoc had 

 been less clearly recognised, while by the correction of the 

 determination of a species of Orthis, there was now a sus- 

 picion of even Menevian forms. These all rested upon the 

 basement-beds of the Cambrian, of which the paper chiefly 

 treated. They were made up of conglomerates, grits, and sand- 

 stones, with Annelids and Fucoids. The basement-beds varied 

 ill thickness and character according to the drift of currents 

 along the pre-Cambrian jhore and the material cf the underlying 

 rocks. Near Penlon, where they rested on a quartz-felspar rock, 

 they consisted chiefly of a quartz-grit and conglomerate, almost 

 exactly bke that of Twt Hill. Near Llanerchymedd, where 

 there was a mass if greenish schistose rock succeeding the 

 Dimetian, the Cambrian basement-bed contained a large number 

 of fragments of that rock,certain bands being chiefly composed of 

 it. Near Bryngwallen, where the underlying Archaean consisted 

 of gneissic rocks, the Cambrian basement-beds were made up of 

 quartz conglomerate. Tracing it still further to the south-west 

 he found bosses of conglomerate among the sand dunes of Cym- 

 meran Bay, full of fragments of green schistose rock like that 

 of Bangor, and telling of the further development of Pebidian 

 at the south-west end of the Anglesey axis. In several localities 

 these conglomerates were associated with and passed into fos- 

 siliferous grits and sandstones. He exhibited slices of the more 

 important rocks, which he showed confirmed the results arrived 

 at from other evidence. He pointed out that the observations 

 now m.ade confirmed the views he had expressed on a former 

 occasion with regard to the basement-beds of the Cambrian 

 between Caernarvon and Bangor, where the deposits which 

 rested upon the granitoid rocks of Twt Hill were either a kind 

 of arko-e or chiefly composed of quartz with a few pieces of 

 mica-schi-t and j.asper ; but as hf followed them a few miles to 

 the north east he found that the quartz had got pounded into 

 smaller grains, and the larger pebliles were chiefly of felsite, 

 which here formed the shore, while further towards Bangor 

 fragments of the still higher Bangor volcanic series helped to 

 make up the Cambrian shingle- beach. — Description and correla- 



tion of the Bournemouth beds. Part II. Lower or freshwater 

 series, by J. S. Gardner, F.G.S. This was in continuation of a 

 former paper by the author (Q.y.G.S. vol. xxxv. p. 209). The 

 beds described are exposed east and west of Bournemouth and 

 near Poole harbour, over a distance of ..bout four miles. The 

 author referred them to the Middle Bagshot, and stated that they 

 are distinguished from the Lower Bagshot by the absence of the 

 extemive pipe-clay deposits and the presence of brick-earths, 

 and from the overlying beds by the absence of flints. They 

 reach their extreme limit in the western area of the London 

 basin, and are represented by the lignitic beds 19-24 of Prof. 

 Prestuich's section. Lignites can be traced partly across the 

 biy. The cliflJs present an oblique section across a delta divis- 

 ible roughly into four masses, one of wdiich, from its confused 

 bedding and want of fossils, is supposed to have been formed by 

 the silting up of the main channel. The total thickness of the 

 series was estimated at 600 to 700 feet. The inferences drawn 

 by the author were as follows :— (l) From the beds cut through 

 showing a steep side to the west, that the river flowed from that 

 direction ; (2) from the absence of boulders or coarse sediment, 

 that the area was flat ; (3) from the absence of lignite, that there 

 were catchment basins ; (4) from the absence of flint, and the 

 quartzose nature of the beds, that no chalk escarpments were 

 cut through, and that the deposits came from a granitic area ; 

 and (5) from the presence of wood bored by Terfdo that the beds 

 belong to the lower part of the river in proximity to tidal water. 

 The flora was stated to be confined to local patches of clay. 

 Those at the western end of the section are very rich, and dis- 

 tinguished from the rest by absence of palms and rarity of ferns. 

 The lieds near Bournemouth are still richer and very di-tinct ; 

 those east of Bournemouth are characterised hy Eucalypti, Aroids, 

 and Araucaria ; and those at the western end of the section by 

 abundant Polypodiacete. It is remarkable that nearly every 

 patch contains a flora almost peculiar to it ; but the flora as a 

 whole seems to pass upward to the Oligocene, but not dnwn to 

 the Lower Bagshot. 



Sanitary Institute of Great Britain, June 21. — Tr. A. 

 Carpenter in the chair. — A paper was read by Prof. W. H. 

 Corfield, M.A., M.D., on the present state of the sewage qties- 

 tion. In the discussion which followed Mr. W. C. Sillar, Mr. E. 



F. Bailey Denton, Mr. Douglas Onslow, Mr. R. W. P. Birch, Mr. 



G. B. Jerram, .and Mr. Wilson Grindle took pnrt. The Chair- 

 man made a few remarks relative to the succesful worl ing of 

 the sewage farm at Croydon, and Prof. Corfield replied briefly 

 to some of the points raised in the discussion. 



CONTENTS Page 



Sv.MBOLic Logic. By Prof. W. Stanley Jevons. F.R.S 233 



Astronomy for Amateurs 234 



UuR Book Shelf; — ^^ 



Browne's " Potanv for Schools and Science Classes 235 



Bettany's " First Lessons in Practical Botany " 235 



Rabenhoi-st's " Kryptogamen-Flora vun Deutschland, Oester- 



reich und der Schweil " 236 



Letters to the Editor :— 



The Comet b i83i.— W. H. M. Christie. F.R.S. : Dr. Henry 



Draper =36 



The Physiology of Mind-Reading.— Prof. G. Croom Robertson 236 



Mind and Muscle-Reading.-Prof. W. F. Barrett . . ... 236 

 Special Solar Heat-Radiations and their Earlh.felt Effects.— Prof. 



PiAZzi Smyth ^37 



Phenomena of Cloud.s.— Henry MuiRHEAD, M.p .. . . ■ • ■ 237 



Early English Pendulum Measures.- Mjijor J. Herschel, F.R.S. 237 



Faure's Secondary Battery —Prof. J. A. Fleming 23s 



Earthquake in Van— Capt. EiiiLius Clayton 238 



Meteors.-B. J. Hopkins ,-.•„• ■ „' ' ' ,; t,' c-' "^ 



The W-P-attern of Padd'es.- General A. Pitt-Rivers, F.R.S. 



(With lUmtrations) 238 



Hot Ice.— Sydney Young (WiMi'M^rrtm) . . . . • - • • 239 

 Note on Piizor/iyiichus melanoceflialus (Ramsay) and Ptilopns 



viridis (Ramsay), from the Solomon Islands.— Ed. P. Ramsay . 239 



The British MusEU.M Catalogle OF Birds .239 



Magnetic and Auroral Observations in High Latitudes. By 



H. R. Procter ^4' 



Nottingham University College . 241 



Anthropology. By Alfred R. Wallace (IF.'V/; /WKi/J-a^MM) . 242 



Notes ^•'S 



Our Astrono.mical Column : — 



The Comet ^-"S 



The Variable Star U Cephei =^4= 



Physical Notes ^"to 



\Vhirlfd"ane'mometers. 'By Prof. G. G. Stokes, Sec.R.S. {With 



Dia^ams) =50 



Fellowships at Owens College, Manchester 254 



Societies and Academies =54 



