07 



BIOLOGY 

 LIBRARY 



3 



Entered according to Act of Congress, in the year 1876, Dy 



HARPER & BROTHERS, 

 In the Office of the Librarian of Congresa, at Washington 



Copyright, 1883, by HARPER & BROTHERS. 



Copyright, 1894, by HARPER & BROTHERS. 



Copyright, 1904, by ELLEN M. ORTON. 



w. P. 4 



