58 
Mr. 11. Owen on the Nesting 
The tongue was pointed, horny at the tip, arrow-shaped; the 
epiglottis fringed with bristles, their points directed backwards; 
the trachea 0*4 (inch) in diameter in its upper portion for one 
inch, thence gradually dilated into an oblong bulb, which be¬ 
comes 0*7 (inch) in diameter at its widest part near the centre. 
Immediately below the bulb the trachea is contracted to a 
width of 0-3 (inch), but again gradually increases in size to the 
bronchia, which are very large and increase in size to the sixth 
ring, afterwards rapidly decreasing. The sixth ring is very 
broad in comparison with the other bronchial rings attached 
to it. There are two large oval glands, one on the outer side 
and one on the inner side, between the branches of the bronchia. 
The trachea is furnished with the usual sterno-tracheal muscles, 
a few fibres decending from them to the sixth ring. The 
oesophagus is large in diameter, and swells out into a capacious 
crop, which was much damaged in the present specimen. It is 
contracted below the crop, but again becomes enlarged to the 
proventriculus, which is slightly thickened, smooth internally, 
and lined at its lower extremity by the epithelium. 
The stomach, which was filled with hard seeds about the size of 
a small hazel-nut, is slightly muscular, 2 inches long by 1Jinch 
in diameter; the epithelium is slightly hardened, and corrugated 
longitudinally. The liver is bilobed. 
Y .—On the Nesting of some Guatemalan Birds . By Robert 
Owen, C.M.Z.S. With Remarks hy Osbert Salvin, M.A., 
F.Z.S. 
(Plate II.) 
When I left Guatemala in April last, Mr Owen kindly under¬ 
took to procure for me what eggs he could of the birds found 
about San Geronimo. By the mail of September I received a 
box containing the result of his lab our s, together with the notes 
relating to their capture. The collection altogether comprises 
102 specimens, the number of species being 23. Of these I had 
previously obtained six. Five of these have been already figured 
in this Journal, vol. i. pi. 5 ; and the sixth is the egg of Sialia 
wilsoni , the well-known Blue Bird of North America. Amongst 
