302 



SECTIONS. INDEX OP SUBJECTS. 



Silurian formation in North Wales, A. 

 Dean on the stratification of, 1844, 56. 



Rocks, igneous, on some peculiarities in the 

 arrangement of the minerals in, by H. C. 

 Sorby, 1858, 107. 



, igneous, T. S. Hunt on, 1860, 84. 



, igneous, interstratified with the car- 

 boniferous limestones of the basin of 

 Limerick, J. B. Jukes on the, 1860, 84. 



, lower lias, on the evidence of a reef of, 



extending from Robin Hood's Bay to the 

 neighbourhood of Flamborough Head, by 

 Capt. Woodall, 1856, 80. 



, limestone, of Canada, Dr. Q-. D. Gibb 



on the caverns in the, 1859, 106. 



, magnesian, T. S. Hunt on, 1860, 83. 



, metamorphic, on a method of obser- 

 vation applied to the study of, and on 

 molecular changes by the action of acids 

 upon them, by A. Gages, 1858, 48. 



, metamorphic, of the north of Ireland, 



Prof. Harkness on the, 1860, 79. 



, metamorphic, in Scotland, Prof. E. 



Forbes on the foliation of the, 1854, 82. 



, metamorphic and igneous, of the Lake 



district, J. G. Marshall on the, 1858, 84. 



, on the relations of the metamorphic 



and older palaeozoic, in Scotland, by D. 

 Page, 1858, 105. 



, older, of the Highland Border, H. C. 



Sorby on the, 1855, 96. 



, palaeozoic, Prof. Phillips on the occur- 

 rence of some minute fossil crustaceans in, 

 1841, 64. 



, palaeozoic, of Britain, Rev. Prof Sedg- 

 wick on the classification and nomencla- 

 ture of the, 1853, 54. 



-, palaeozoic, of Germany, Sir R. I. Mur- 



chison on the, 1854, 87. 



, palaeozoic, of Scandinavia and Russia, 



on the, 1844, 53. 



, palaeozoic, of Scotland, D. Page on 



the subdivisions of the, 1854, 91. 



, palaeozoic and metamorphic, of Scot- 

 land, D. Page on the subdivisions of the, 

 1855, 92. 



, palaeozoic. North American and Bri- 

 tish, Prof. H. D. Darwin on the correla- 

 tion of the, 1856, 175. 



, passage, and the old red sandstone of 



Herefordshire, on some fishes and tracks 

 from the, by Rev. W. S. Symonds, 1859, 

 124. 



, plutonic, T. S. Hunt on the. 1860, 84. 



, quartz, crystalline limestones, and 



micaceous schists of the North-western 

 Highlands of Scotland proved to be of 

 lower Silurian age, by Sir R. I. Murchi- 

 son, 1857, 82. 



, secondary, of Britain, Prof, Strickland 



on the results of researches into the fossil 

 insects of the, 1845, 58. 



, lower sedimentary, of Cumberland, 



Prof. Harkness on the, 1857, 67. 



, lowest sedimentary, of Scotland, Prof. 



Harkness on the, 1855, 82. 



Rocks, ancient sedimentary, of Ireland and 

 Scotland, Prof Harkness on some new 

 fossils from the, 1856, 65. 



, schistose, J. B. Jukes on the meta- 

 morphic origin of, 1856, 68. 



, upper Silurian, of Denbighshire, J. E. 



Bowman on the, 1841, 59. 



, Silurian, of Bohemia, Sir R. I. Mur- 



chison on the, 1850, 97. 



, lower Silurian, discovery of micro- 

 scopic shells in the, 1854, 82. 



, Silurian and metamorphic, of the 



south of Norway, D. Forbes on the rela- 

 tions of the, 1855, 82. 



, old slate, of the north of Devonshire, 



classification of the, by Prof. Sedgwick 

 and Sir R. I. Murchison, 1836, 95. 



, slate, J. P. Norton on their composi- 

 tion and the soils formed from them, 



1845, 38. 



, J. Leithart on the stratification of, 



1838, 88. 



, stratified. Prof. J. Phillips on certain 



movements in the, 1843, 60. 



, stratified, on the connexion of the 



granite with the, in Aberdeenshire, by 

 T. F. Jamieson, 1859, 114. 



, Sir R. I. Murchison on the distinc- 

 tion between the striated surface of, and 

 parallel undulations dependent on original 

 structure, 1842, 53. 



, striated and polished, and " Roches 



moutonnees" in the Lake district of 

 Westmoreland, J, Bryce on, 1850, 76, 

 112. 



, striated, and other evidences of ice- 

 action in the north of Scotland, Prof. J. 

 Nicol on, 1855, 88. 



, tertiary, in the islands stretching 



from Java to Timor, J. B. Jukes on the, 



1846, 67. 



, trap or igneous. General Portlock on 



the manner in which they intrude into 

 the sandstone and conglomerate of North 

 Berwick, 1850, loi. 



, trap, of Scotland, A. Geikie on the 



chronology of the, 1859, 106. 



, upper Ludlow, and the base of the 



old red sandstone. Sir R. I. Murchison on 

 the bone-beds of the, 1856, 70. 



, volcanic, in Italy, which appear to 



have been subjected to metamorphic ac- 

 tion, Dr. Daubeny on the, 1859, loa. 



of North America, Prof. H. D. Rogers 



on the, 1848, 74. 



of Barbados, Sir R. H. Schomburgk 



on the, 1847, 70. 



of South Devon and Cornwall, Rev. 



D. Williams on the, 1839, 68. 



of Connemara, Ireland, on the exist- 

 ence of phosphoric acid in certain, by Dr. 

 Daubeny, 1855, 56. 



of the Dingle Promontory, co. Kerry, 



J. B. Jukes and G. V. Du Noyer on the, 

 1857, 71. 



occurring between the Girdleness and 



