908 The American Naturalist. [October, 
that position. (Spring occurrences: April 19, 1886; May 7, 1887; 
May 4-19, 1888; May 3-17, 1890; April 22 to May 9, 1891. Fall 
occurrences: Oct. 12, 1889; Oct. 18, 1890). 
109. D. maculosa (Gmel.), Magnolia Warbler. Common migrant in 
the spring and fall. (Spring occurrences: May 9-15, 1888; May 14, 
1889 ; May 10-17, 1890; May 9, 1891). 
110. D. cerulea (Wils.), Cerulean Warbler. Very rare migrant. I 
shot a female in a swamp in West Goshen, May 10, 1890 (now in col- 
lection Acad. Nat. Sci. Philada.). I believe this to be the only pub- 
lished record of this species in eastern Pennsylvania, with the excep- 
tion of one recentty secured in Delaware Co. Dr. B. H. Warren 
claims (“ Birds of Pennsylvania,” 2d ed., 1890) to have seen five indi- 
viduals in this part of the State, but since he does not mention to have 
taken specimens, the identity of these cases must be questioned. 
111. D. pennsylvanica (Linn.), Chestnut-sided Warbler. Abundant 
migrant in the spring and fall. (Spring occurrences: May 7, 1887; 
May 9, 1888; May 11,1889; May 10-17,1890; May 9, 1891). 
112. D. castanea (Wils.), Bay-breasted Warbler. Infrequent mi- 
grant. I shot a male on May 11, 1889, and a male and female May 17, 
1890, also a bird of the year Sept. 17, 1890, 
113. D. striata (Forst.), Black-poll Warbler. Common migrant in 
the spring and fall. (Spring occurrences; May 17, 1887 ; May 9-27, 
1888; May 11-14, 1889; May 17,1890; May 8, 1891). 
114. D. blackburnie (Gmel.), Blackburnian Warbler. Tolerably 
common migrant in the spring and fall. (Spring occurrences: May 5 
-19, 1888; May 4, 1891; May 7, 1897. Fall occurrences: Aug. 28, 
1888 ; Sept. 19, 1890). 
115. D. virens (Gmel.), Black-throated Green Warbler. Abundant 
spring and fall migrant. (Spring occurrences: April 28 to May 12, 
1888; April 25 to May 8, 1891. Fall occurrences: Oct. 7. 1887 ; 
Sept. 19-29, 1889; Sept. 19 to Oct. 5, 1890). i 
116. D. vigorsii (Aud.), Pine Warbler. Common migrant in the 
fall. (Fall occurrences: Oct. 1-8, 1857; Sept. 19, 1889; Sept. 17 to 
Oct. 18,1890). No spring occurrences have been noted by me. 
117. D. palmarum hypochrysea Ridgw., Yellow Palm Warbler. 
Rather infrequent migrant in the spring. I have never seen it in the 
fall. In April, 1891, I shot five specimens and. saw a few others, and 
saw a single one April 25, 1897. 
118. D. discolor (Vieill.), Prairie Warbler. Rather rare migrant, 
which I have seen only twice, on May 10, 1890, when I secured a 
_ female and saw two other individuals, and May 2, 1897. 
