ILLUSTRATIONS. V 



Page 



Plate 17 — Keyes : Eastern part of the Ozark uplift. 363 



" 18 — Gulliver: Sand point, Prudence island, Rhode Island 399 



" 19 -Fairchild: Hydrography of the Genesee valley 423 



"20 '^ Outlet channels of glacial Genesee lakes (2 figures) 439 



"21 " Water-plane and contorted clays of glacial Genesee 



lakes (2 figures) 442 



" 22 — Le Conte : Portrait of James D. Dana 461 



" 23 — Dahton : Portion of the Kaaters kill atlas sheet, U. S. Geological 



Survey 505 



" 24 — Keith : The t'ennessee basin 519 



Figures 

 Dawson : 



Figure 1 — Southwestern part of the district of Alberta 33 



" 2 — Section on the south fork of Oldraan river 43 



" 3 — Diagrammatic section from Lethbridge to base of Rocky 



mountains, along the valley of Oldman river 45 



*' 4 — Section in bank of Bow river near Calgary 54 



" 5 — Section across Bow valley at Morley 57 



Spencer : 



Figure 1— Map of Cuba 69 



" 2 — A high baselevel valley 69 



" 3 — A section along railway on the east side of Havana bay 74 



' ' 4 — Section along Yumuri canyon 76 



" 5 — The coastal chain of Tertiary mountains dislocated by faults. 80 

 " 6 — View of terrace (Matanzas limestones) at entrance to Xagua 



bay 83 



" 7 — Pan de Matanzas from the south 87 



" 8 — Pan de Matanzas from the north. 87 



" 9 — Bay and valley at Santiago 90 



" 10— Xagua bay 91 



" 11 — Cross-section of outlet of Xagua bay 91 



" 12— Map of Yumuri valley 92 



" 13 — Longitudinal section of ridge closing Yumuri valley 92 



Gordon : 



Figure 1 — The apatite region of Ottawa county, Canada 97 



' ' 2 — Dike of coarse syenite-gneiss cutting quartzite and pyroxenite . 100 



" 3 — Intrusion of syenite in pyroxenite and quartzite 101 



" 4 — Dike of coarse syenite-gneiss cutting pyroxenite and inclosing 



portions of the latter 102 



" 5 — Section transverse to granular bands in the coarse syenite- 

 gneiss 108 



" 6 — Section showing granular band intersecting the rock 109 



" 7 — Section transverse to the pyroxene band in the ellipsoidal 



syenite-gneiss ... 115 



' ' 8 — Idiomorphic hornblende crystal in the streaked syenite-gneiss. 118 



" 9 — Pocket in the pyroxenite filled with apatite and calcite 127 



Jackson and Jaggar : 



Figure 1 — Ideal arrangement of interambulacral plates in Mdonltcs multi- 



poi'us 164 



