932 



GENERAL INDEX. 



tion under Capt, Sir George Nares, 

 K.C.B., 568. 



Arctic fossils, American affinities of, 

 571. 



Ardnamurckan, poikilitic deposits of, 

 692 ; Lower Lias in, 707 ; Middle 

 Lias in, 714 ; Inferior Oolite of, 

 721. 



Ardtornish, Inniraore of, section ex- 

 posed at the, on the Sound of Mull, 

 673 ; Upper Cretaceous deposits 

 near, 736 ; Lower Lias of, 708. 



Argillornis longipennis, Ow., Prof. R. 

 Owen on, a large bird of flight, 

 from the Eocene clay of Sheppey, 

 124. 



Asaphus (?tyrannus), 591. 



Ash-gill shales, fauna of the, 873. 



Atrypa Mansonii, 596. 



phoca, 596. 



reticularis, 596. 



Auchy-au-Bois, near Lillers, relations 

 of Carboniferous strata at, 905 ; 

 sections of borings at, 906 ; section 

 across the coal-field of, 906. 



Australia, Mr. R. Daintree on certain 

 modes of occurrence of gold in, 

 431. 



Avicula Hendersoni, 11. 



Axeidae, 407. 



Ayrshire, porphy rites of, 780. 



Ayrshire coast, Rev. T. G. Bonney on 

 the serpentine and associated igneous 

 rocks of the, 769. 



Balhamie Hill, serpentine of, 770. 



Balmynlieer, section at, 648. 



Balstone Down, " greenstone " of, 

 488. 



Bangor, Prof. Hughes on the Precam- 

 brian rocks of, 137. 



, section near, 139. 



, microscopic structure of rocks 



from, 145, 146. 



Barra, physical features of, 854 ; geo- 

 logical structure of, 854 ; glaciation 

 of, 855 ; till or boulder-clay of, 

 856 ; erratics of, 857 ; plan of basalt 

 veins intersecting gneiss near North 

 Bay in, 855. 



, islands in the Sound of, 854. 



Basaltic dykes of the Ayrshire coast, 

 782. _ - 



Basalt-veins intersecting gneiss, plan 

 of, near North Bay, island of Barra, 

 855. 



Basement bed, Silurian, in the Lake- 

 district, 876. 



Beaches, raised, in Devonshire, 451, 

 454. 



Bearnareidh, glaciation of, 859. 



Beg's Cave, sketch taken near, on the 

 southern shore of Loch-na-Keal, 

 opposite Inch Kenneth, 695. 



Benin Carsaig, section through, 

 731. 



Beinn Creagach, section through, 

 731. 



Beinn-na-Capall, section through, 

 671. 



Beinn-y-Hattan, Lower Lias of, 709 ; 

 representatives of the Chalk in, 734 

 -736 ; general sections of, 734-736. 



Beinn-y-Hun, representatives of the 

 Chalk in, 733. 



Belcraig Burn, general section, 284. 



Bellerophon decassatus, 19. 



, sp., 606. 



Benbecula, 848. 



Benches in British Columbia, 107. 



Ben Fyn, section from the north side 

 of Loch Maree to, 812. 



Ben Slioch, section through, 812. 



Berrybush Burn, sketch section 

 through, 276-279 ; vertical section 

 of Ccenograptus-beds at, 304. 



Bhaterseidh, glaciation of, 857. 



Bideford, Culm-measure grits and 

 shales exposed by the highroad 

 between Torrington and, opposite 

 Wear Gifford, 54. 



Binton, section in Lower Lias at, 

 182. 



Birkhill shales, 317. 



, vertical sections of, at 



Dobb's Linn, 319-322. 



Black Grain, sketch section in, 275. 

 Blackhead, igneous rocks of, 475. 

 Blackshope Burn, section through. 



300. 

 Blackwater Valley, British Columbia, 



glacial deposits in, 114. 

 Blocks, transportation of, 52. 

 Boar Cleuch, section of, Glengaber 



Burn, 297. 

 Bokelly, " greenstone " of, 483. 

 Bone- breccias in caves and fissures in 



Gibraltar, 520. 

 Bonney, Prof. T. G., on the micro- 

 scopic structure of some Welsh 



rocks, 137. 

 , on the serpentine and associated 



igneous rocks of the Ayrshire coast, 



769. 

 , and Rev. E. Hill, on the Pre- 



Carboniferous rocks of Charnwood 



Forest. Part IT. 199. 

 Boulder-clay of British Columbia, 



103. 



of Harris, 835 ; of North Uist, 



846 ; of South Uist, 852 ; of Barra, 

 856. 



