THE OSPllEY. 107 



Palmer found the testes to be well developed, and lie agrees with nie that the 

 bird was undoulitedly l)reeding. Its actions and its attachment to the particular 

 vicinity so long after the usual time of migration favor this supposition. 

 Several records which I have come across in The ylw^indicate that the Cerulean 

 is an early breeder, or that at least it breeds as early as the majority of the 

 warblers in this vicinity, the most of which had at that date (May 2'Jth) either 

 young or well incubated eggs. Bradford Torrey found a female gathering 

 nest materials at Natural Bridge, Virginia, as early as May 6, in 1896.* On 

 May 26, 1890, W. E. C. Todd took an incomplete set of three, with a Cow- 

 bird's egg, in Beaver County, Pennsylvania. f Davidson's set from near 

 Lockport, New York, was on the point of hatching, June 8.:!; Add to these 

 the data for the Ontario records of Saunders^ and the facts of the more recent 

 announcement by Kirkwoodl of the bird's breeding near Baltimore, Mar}' 

 land, and there is every reason to suppose that the present record is that of a 

 resident bird, probably breeding. Only the one individual was seen or hoard, 

 and none has been found since; but it seems very likely that judicious search 

 would discover breeding birds somewhere in the general vicinity of the river 

 course toward Great Falls. 



NOTICE OF DR. JAMES G. COOPER. 



By William H. Dall. 



The death of Dr. James G. Cooper closes the scientific outcome of a 

 family that has been well known to follow-studonts, at least in the Zoology of 

 the United States, for three quarters of a century. The members of that 

 family devoted to the study of nature were William Cooper and his son 

 James G. Cooper. With both the senior editor was acquainted and when a 

 youth he accompanied the father, who then resided in Hoboken, N. J., in conchol- 

 ogical excursions, especially to what was then called the Elysian Fields. 



William Cooper, in his early days, was most interested in the study of 

 mammals (especially bats) and birds, and the common Cooper's Hawk {Acci- 

 piter cooperi) was named after him by Prince Charles Bonaparte. 



James Graham Cooper, son of William, was born in New York June 19, 

 1830. The principal features of his life have been published in Science by 

 Professor William H. Dall and we cannot do better than copy what he has 

 written. 



The death of Dr. Cooper occurred after an illness of some time, at his 



*Auk /J.- 179. 1896. 



fAuk S: 238. 1891. 



i Auk 5.- 430. 1888. 



gAuk /y: 358. 1900. 



JAuk /S: 137. 1901. See also Pleasants in Auk /o: 371. x893. 



