58 Mr. R. 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 poi'tion 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 bi'onchia. 

 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 shghtly 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 1| inch 

 in diameter; the epithelium is slightly hardened, and corrugated 

 longitudinally. The liver is bilobed. 



V. — On the Nesting of some Guatemalan Birds. By Egbert 

 Owen, C.M.Z.S. With Remarks by 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 labours, 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 

 ivilsoni, the well-known Blue Bird of North America. Amongst 



