OF EASTERN PENNSYLVANIA. 4:, 



\valls. 1-2 inch ; depth of cavity, I 1-2 inches, indicating a 

 thickness at the bottom of i 1-2 inches. 



No. i of the deviations alluded to above, is nearly circu- 

 lar in outline, somewhat flattened, and has an average diam- 

 eter of 4 inches, and a depth of 2 inches. Diameter of 

 cavity, 21-2 inches, depth, i inch ; thickness of lateral 

 walls. 3-4 inch, and at the bottom, i inch. This nest is 

 constructed entirely of the silk of corn, externallv ; and is 

 lined with small pieces of string, and a few hairs. The ab- 

 sence of moss and clav pellets, is a noticeable feature ; such 

 ordinarily indispensable materials, evidently not being re- 

 quisite, if the site of the nest affords anv criterion. 



No. 2 of these anomalous forms, has a circular contour, 

 with a diameter of 5 inches, and a depth of 2 1-2 inches on 

 the outside. The diameter of the Cavity is 2 1-2 inches, and 

 the depth 2 inches. The lateral walls are i 1-4 inches thick. 

 and basal walls, 1-2 inch. The entire nest is composed of 

 the inner bark of the chestnut, plucked, doubtless, from 

 fence rails, and reduced to very fine strips for the inner part 

 of the fabric ; these gradually attain to a width of one-fourth 

 of an inch, outwardly. 



In a form, intermediate between the typical structure and 

 the first deviation therefrom, we find the diameter to be 

 4 1-2 inches, and depth, 2 inches; diameter of cavity. 2 1-2 

 inches, and depth, i 1-2 inches ; lateral walls each i inch, 

 and basal, 1-2 inch. The exterior of this nest is built of 

 fine grasses, hair, wool, and. an abundance of mosses, envel- 

 oping the foregoing materials. Within, it is lined with solt 

 grasses and hairs, in equal proportions. The absc-nce of 

 clay would seem to imply an unexposed locality, to which 

 supposition, its comparatively loose structure, does certainly 

 add weight. 



A very beautiful nest, which we lately procured from the 

 outskirts of Germantown, is composed, exteriorly, almost 

 wholly of Dritmmoiulia cla-ccllata which grows exuber- 

 antly in our midst. It is intricately interwoven, but 



