jv CONTENTS. 



JOHN TORREY S 59 



William Starling Sullivant 370 



Jeffries Wyman 377 



Daniel Hanbury 401 



Alexander Bradn 403 



Charles Pickering 406 



Elias Magnus Fries 411 



.1 \ OB BlGBLOW 413 



John Carey 417 



Thomas Potts James 419 



John Amory Lowell 421 



Charles Darwin 425 



Joseph Decaisne 437 



George Engelmann 439 



Oswald Heer 447 



George Bentham 451 



Augustus Fendler 465 



Charles Wright 468 



George W. Clinton 475 



Edmond Boissier 479 



Johannes August Christian Rceper 482 



Litis Agassiz 483 



Edward Tuckerman 491 



