CONTENTS. 



GALILEO GALILEI 1 



Sm ISAAC NEWTON 28 



GAEL LINNAEUS 49 



BARON CUVIER . . 65 



SIB WILLIAM AND CAROLINE HERSCHEL .... 81 



ALEXANDER VON HUMBOLDT 107 



SIR HUMPHREY DAVY . . . 139 



JOHN JAMES AUDUBON 167 



SAMUEL FINLEY BREESE MORSE ....... 202 



SIR CHARLES LYELL . 246 



JOSEPH HENRY, LL.D. . , 275 



Louis AGASSIZ 302 



FRANCIS TREVELYAN BUCKLANU ..'.... 347 



