ILLUSTRATIONS 



PAGE 

 THE SKULL, LACKING THE LOWER JAW, OF EOBASILEUS COR- 



NUTUS, COPE 96 



METAMYNODON, OR SWIMMING RHINOCEROS, FROM SOUTH DA- 

 KOTA '. 101 



HYRACHYUS, OR RUNNING RHINOCEROS, FROM SOUTHERN WYO- 

 MING 103 



PROFESSOR B. D. COPE 106 



PROTOROHIPPUS, THE ANCESTRAL FOUR-TOED HORSE .... 110 



PROFESSOR O. C. MARSH 112 



THE EVOLUTION OF A HORSE'S FOOT AND OF A HORSE'S HEAD 115 

 FOOTPRINTS OF REPTILES FOUND IN CONNECTICUT SAND- 

 STONE 118 



TITANOTHERE FROM SOUTH DAKOTA 120 



THE RESULTS OF EROSION BY RUNNING WATER 127 



THE RESULTS OF EROSION BY WIND 131 



A MOUNTAIN CARVED FROM HORIZONTAL STRATA 133 



LOUIS JEAN RODOLPH AGASSIZ . . . . ) 



135 

 ADAM SEDGWICK, F.R.8 ) 



JAMES DWIGHT DANA ) 



> Io7 



SIR RODERICK IMPEY MURCHISON . ) 



WILLIAM SMITH, LL.D 139 



GEORGE POULETTE SCROPE, F.R.S . ) 



> 141 



SIR CHARLES LYELL, BART., F.R 8 ) 



A LANDSCAPE AND MAMMAL OF THE TERTIARY AGE .... 143 

 A LANDSCAPE AND TERRESTRIAL REPTILE OF THE MICSOZOIC 



TIME 147 



MANHATTAN ISLAND IN THE QUATERNARY AGE THE MASTO- 

 DON 151 



SIR RICHARD OWEN 155 



A METEORIC STONE 159 



CIRRUS CLOUDS 163 



CUMULUS CLOUDS 165 



STRATUS CLOUDS 168 



JEAN BAPTISTE BIOT 1 73 



LIEUTENANT MATTHEW FONTAINE MAURY 179 



A WHIRLWIND IN A DUSTY ROAD 183 



WATERSPOUTS IN MID-ATLANTIC ,,,... 185 



vi 



