INDEX. 



139 



Kensselaerite a serpentine mineral, 

 5,6. 



forms an ophitic rock, 2. 



Retepora cellulosa simulated in Cor- 

 nish serpentinyte, 11. 



Retinalite, 5. 



Rhodochrome, 5. 



Richardson, T., on dolomite, 91. 



Ripidolite, 5, 6. 



Roches homogenes et heterogenes of 

 Alex. Brongniart, 47. 



Rock-jointing. See Jointing. 



Rogers, Professors, on decomposition 

 of serpentine, 4, 25. 



Roman baths at Plombieres, minerals 

 generated in brickwork of, 35. 



Rose, Gustaf, origin of serpentine, 

 vii,37, 41. 



Rossie (St. of New York), crystalline 

 limestone of, 56. 



Rottenstone, a product of rock-alter- 

 ation, 43. 



Rowney, Dr. T. H. (in conjunction 

 with Prof. W. King), xii, xiii, 

 xxii, xxiii, xxviii, xxxiii, xxxix, 

 xliii, xlvi. 



( ), on regional metamor- 



phism, 34, 35. 



( ), on dolomitization, 92, 



93, 94. 



Rozel on hemithrene of the Vosges, 

 53. 



Rutley, Frank, on the serpentine of 

 Cannaver Isle, 40. 



S. 



Sahlite, 7, 55, 57. 



St.-Bees' red sandstone, its place in 



the Permian system, 101. 

 Sainte Marie-aux-Mines. See Mont 



St. Philippe. 

 St. Paul's Islands, their relation to 



the earth's volcanic girdle, 117. 

 Sandberger, F., on origin of serpen- 

 tine rocks &c., 70. 

 Sandford, W. A., on Eozoon " in 



Connemara marble, xl. 

 Sanidine, its occurrence in deep-sea 



deposits, 76. 

 Saponite, xliii, 5, 11. 

 Sapphire, its occurrence in hemi- 



threnes &c., 7. 

 Scheerer on pseudomorphism, vii, 



24. 



on aqueous origin of granite, 34. 



on hemithrenes, 48, 53. 



Schimper, Prof. W. P.. opposes 



"Zozoon," xlix. 

 Schizodus-li-mestones, their position 



in the Permian system, 102. 

 Scouler, Dr. R., on dolomite, 91. 

 Sedgwick, Rev. Prof. Adam, on ser- 

 pentine rock of the Lizard, 87. 

 on coralloids of the Durham 



magnesian limestone, 93, 106. 

 Sedimentary ophites, 45, 46. 

 Selwyn, Alfred R. C., on Levis 



metamorphics, 48, 88. 

 , on Huronian rocks of Canada, 



74. 

 , on thickness of the" Archaean 



rocks, 73. 

 Sepiolyte (sepiolite, " argile mag- 



nesienne), 2, 5, 29, 44. 

 Sequoias, fossil, of Grinnell Land 



and Spitzbergen, 116. 

 Serapis, columns of verd antique in 



temple of, 11. 

 Serpentine minerals, their pseudo- 



morphic origin &c.. xiv, 1, 4-7, 24, 



50, 63, 64, 71. 

 rocks (serpentinytes), their 



methylotic origin. See Methy- 



losis. 



generally. See Ophites. 



, kinds originally igneous, 



intrusive or eruptive, xiv, xliv, 



, kinds originally sedimen- 

 tary, 45, 46. 



Serpentinized porphyry, granite, sy- 

 enite, and other rocks near Gal- 

 way, 27, 41. 



rocks. See Methylosis. 



Serpentinytes, xliii, 2, 11, 21, 37. 



Seyoertite, 5. 



Shallow-water deposits, 100, 101. 



Sharpe, Daniel, on slaty cleavage, 

 109. 

 , on terraces of the Alps, 113. 



Shetland, serpentines &c. of, 38, 

 48. 



, South, its relation to the earth's 



volcanic girdle, 117. 



Siberia, meteoric falls of, 63. 



, Boreal, under genial climatal 



conditions, 116. 



Sideromelane, its occurrence in deep- 

 sea deposits, 75. 



Silacid or ordinary metamorphics, 2, 

 75, 76. 



and silo-carbacid ophites. See 



Serpentine rocks. 



