210 



No. Sex. Locality and Date 



47694 1 9 Point Reyes, Cal., Nov. 25, 1897 



47695 1 9 



47696 1 9 



47697 1 9 



47698 1 9 



47699 1 9 



47700 1 9 



47701 1 9 " " " 26, 



3925 1 9 San Francisco, " 

 Average 



-, 1874, 



2.53 .78 .52 .17 



2.61— .78— .52 .18 + 



Type of coturniculus. 



12862 2 ? Farallones, Cal., "Registered" 

 Oct. 13, 1859, 



2.73 .75 .52 



.16 



If I have dealt at all satisfactorily and conclusively with the 

 matters considered in this article my success has been due very 

 largely to the assistance so kindly given me by the officers of the 

 Smithsonian Institution who, with char icteristic liberality, have 

 placed uite at my disposal the entire series of Black Rails con- 

 tained in the collections under their charge. I am also indebted 

 to my friend Mr. Outram Bangs for an opportunity of examining 

 specimens from his collection which have proved of great service. 

 Had it not been f r the free use which I have been permitted to 

 make of all this materia', and especially of the precious type of 

 coturniculus, I should have been utterly unable to cope with what 

 has been long and justly considered a peculiarly difficult problem. 



Collection of William Brewster. 

 2 Collection of U. S. Nat. Museum. 



