192 REPORT OF NATIONAL MUSEUM, 1904. 



Nor must it be thought that in touching upon sundry disputes, 

 quarrels, and petty jealousies it has been done with an idea of belittling 

 the individual in any way. Indeed, a truly able man is not belittled 

 by his weaknesses. To appreciate his strength we need to know his 

 weakness. These were but men, and we, who are weakly human, like to 

 recognize in them human traits — like to learn of their errors in judg- 

 ment and wordy warfares. 



Regarding the portraits, it may, perhaps, be well to state that a 

 special effort has been made to obtain such as represented the individ- 

 ual at the period of his career under discussion. This has naturally 

 been a matter of some difficulty, and in some cases an impossibility. 



A large part of those here reproduced are from the G. Brown Goode 

 collection in the National Museum and the private collection of the 

 writer. For assistance in securing others the writer is indebted to 

 Prof. W. H. Brewer, Prof. W. B. Clarke, Dr. W. H. Dall, S. F. 

 Emmons, Dr. A. C. Peale, T. C. Weston, Gen. A. W. Vogdes, and 

 others. Acknowledgments for other assistance are due to many, but 

 particularly to Prof. Charles Schuchert, formerly of the National 

 Museum, but now of Yale University. Miss Lucy M. Graves has 

 rendered valuable assistance, both in preparation of tbe manuscript 

 and reading the proof. 



