SiDENER — SLADEN 169 



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SiDENER, C. F. , Analysis by 3, 348 



SiERKA Club cited on Mount Rainier Forest Reserve 6, 14 



Sierra Nevada, Auriferous slates of the 5, 243 



— , Rocks of the 3, 413 



— , Structure of the 2, 49 ; 3, 370 



SiHLEANo, Step^an, Translation by 3, 81 



Silica, Solution of 8. 213 



SiLLiMAN, B., cited on ankerite 6, 235 



mariposite 6, 230, 234, 235 



Silurian, Argument for retention of old definition of. 1, 40 



— fish remains 3, 59 



— intraformational conglomerates 5, 192, 193 



— limestones of lake Huron 6, 298 



in Vermont 2, 336 



— ore conglomerates 2, 219 



— rocks of Adirondacks ^) 214 



California 3, 372 



Georgia and Alabama 5, 469 



Green mountains 3, 514 



Massachusetts "'t 5 



Minnesota 3, 332, 464 



Montana 2, 351 



New York. Thickness of 4, 91 



Pennsylvania 5, 41 



Quebec 2, 480 



Virginia 5, 176, 188 



— sections in Ontario *. 227 



— vertel)rates • 3, 153 



SiLVA, J. F. DA, cited on exfoliation of rocks 7, 274 



SiMONDS, F. W., cited on valleys due to ice action 5, 350 



— , Title of paper by 9, 2 



SiMONSOHN, , Collections by 3, 59 



Simpson, C. T., cited on resemblance between fauna of West Indian waters 



and the Pacific 9, 32 



West Indian land shells 6, 135 



— , Fossils from Cuba determined by 6, 124 ; 7, 82, 93 



Greenland determined by 9, 349 



Simpson, J. H., Reference to western explorations of 6, 32 



SiNNOTT, C. P., Work of, in eastern Massacliusetts 1, 447 



SisMONDiA inarginalis renamed 3, 105 



— plana renamed 3, 105 



Sjogren, A. , cited on European oil fields 3, 194 



Skaneateles lake, Preglacial valley of. 10, 51 



Skill, H. G., cited on granitoid gneiss 4, 317 



Skunnemunk conglomerate of New York 5, 371-373 



" Slack-veins " in Coal Measures 9, 47 



, Age and origin of. 9, 51 



Sladen, W. p., cited on Clypeastroids and Spatangoids 7, 144 



XXII— Bull. Geol. Soc. Am. 



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