CONTENTS 1 



PAGE 



EDITOR'S PREFACE 3 



BENJAMIN THOMPSON, COUNT RUMFORD, Physicist [1753- 



1814] 9 



By EDWIN E. SLOSSON 



ALEXANDER WILSON, Ornithologist [1766-1813] 51 



By WITHER STONE 



JOHN JAMES AUDUBON, Ornithologist [1780-1851] 71 



By WITMER STONE 



BENJAMIN SILLIMAN, Chemist [1779-1864] 89 



By DANIEL Con OILMAN 



JOSEPH HENRY, Physicist [1797-1878] 119 



By SIMON NEWCOMB 



LOUIS AGASSIZ, Zoologist [1807-1873] 147 



By CHARLES FREDERICK HOLDER 



JEFFRIES WYMAN, Anatomist [1814-1874] . 171 



By BURT G. WILDER 



ASA GRAY, Botanist [1810-1888] 211 



By JOHN M. COULTER 



JAMES DWIGHT DANA, Geologist [1813-1895] 233 



By WILLIAM NORTH RICE 



SPENCER FULLERTON BAIRD, Geologist [1823-1887] ... 269 

 By CHARLES FREDERICK HOLDER 



OTHNIEL CHARLES MARSH, Paleontologist [1831-1899] ... 283 

 By GEORGE BIRD GRINNELL 



EDWARD DRINKER COPE, Paleontologist [1840-1897] ... 313 

 By MARCUS BENJAMIN 



JOSIAH WILLARD GIBBS, Physicist [1839-1903] 341 



By EDWIN E. SLOSSON 



1 The lives are arranged, not chronologically by date of birth, but by median date. 



V 



M 2731 



