of the Gulf of St. Lawrence. 267 



other points on the coast. The eggs are said by Naumann to be 

 larger than those of the Foolish Guillemot, and the shell to be 

 smooth, and the spots to be seldom large, &c. The largest Guille- 

 mot Qgg found by me was one of the present species, but in respect 

 to the coloration I notice no particular mark by which they could 

 be distinguished. When at Gannet Rock I unfortunately suppos- 

 ed that I should find this and the succeeding species equally com- 

 mon on the North Shore, and neglected to procure many speci- 

 mens. The largest and handsomest Qgg procured is one of the 

 green variety, and marked over the whole surface with lines that 

 present very much the appearance of Chinese characters ; it re- 

 sembles, however, specimens of the eggs of Uria troille, and I see 

 no character by which it could be distinguished from them. 



Naumann gives, as one of the distinguishing features of the 

 eggs of this bird, a peculiarly fine spotting or dotting, which 

 gives the whole egg, at a short distance, the appearance of 

 being uniformly dark colored. I saw no eggs at Gannet Rock 

 that presented this peculiarity, but in the collection of the Smith- 

 sonian Institution there are eggs from California of another species, 

 which are so marked. The species to which these eggs belong 

 is as yet doubtful. Among the thousands of eggs of U, troille 

 seen by me at Labrador, not one presented this peculiarity. 



Four eggs measured : 19 x 41 mill. — '75x48 — 10 x 46 — 80 x 50. 



Uria lomvia* Linn. Every available spot on the sides of 

 Gannet Rock, not already occupied by the Gannets or Kittiwakes, 

 had been taken possession of by the three last-mentioned species 

 of Guillemots and the Razor-billed Auks ; their comparative num- 

 bers were about three of U. troille to two of U. lomvia and one 

 of U. Ringvia, and about one Auk to fifty Guillemots. I noticed 

 nothing in the habits of these birds not already well known. 



According to Naumann, the eggs of U. lomvia resemble a 

 turkey's in form : though their shape is generally more ovate 

 quently larger and less numerous, I have not been able to find 

 any character by which they can certainly be distinguished. I 

 have eggs, particularly of U. ringvia, that present these peculiari- 

 ties as strikingly as any of the present species. 



Four specimens measured as follows : V9 x 47 mill. — 75 x 48 — 

 70 X 48—70 X 45. 



