SECTION lY. — BIOGRAPHY. 37 



YouMANS, William Jay. 



Pioneers of Science in America. Sketches of their lives and scien- 

 tific work. New York, iSc/i. Svo. 111. Portrait of each 

 scientist. 



Contents : Benjamin Franklin, John and William Bartram, John \Vin- 

 throp, David Rittenhouse, G. H. E. Mnhlenberg, S. L. Mitchill, 

 B. S. Barton, Alexander Wilson, David Hosack, Amos Eaton, 

 Gerard Troost, C. A. Lesuer, Benjamin Silliman, Sr., J. J. Audnbon, 

 L. D. von vSchweinitz, Robert Hare, C. S. Rafinesqiie, J. P. Espy, 

 Thomas Nnttall. Thomas Say, W. C. Bond, S. F. B. Morse, 

 Denison Olmsted, Isaac Lea, Gardner Vanuxem, Elisha Mitchell, 

 Edward Hitchcock, H. R. vSchoolcraft, S. L. Dana, Zadoc Thomp- 

 son, John Torrey, George Catlin, Ebenezer Emmons, Joseph 

 Henry, James B. Rogers, John Ericsson, T. A. Conrad. W. S. vSul- 

 livant, W. W. Mather, W. B. Rogers, C. U. Shepard, S. C. Walker, 

 A. D. Bache, J. H. Coffin, Leo Lesqnereux, M. F. Maury, J. R. L. 

 Agassiz, A. H. Giiyot, D. I). Owen. 



