PREFACE.
GALILEO GALILEI.
SIR ISAAC NEWTON.
CARL LINNÆUS.
BARON CUVIER.
SIR WILLIAM AND CAROLINE HERSCHEL.
ALEXANDER VON HUMBOLDT.
SIR HUMPHREY DAVY.
JOHN JAMES AUDUBON.
SAMUEL FINLEY BREESE MORSE.
SIR CHARLES LYELL.
JOSEPH HENRY, LL.D.
LOUIS AGASSIZ.
CHARLES ROBERT DARWIN.
FRANCIS TREVELYAN BUCKLAND.
Mrs. Sarah K. Bolton's Famous Books.
