On Schaeffer's ' Museum Ornithologicum.' 85 



Stercorarius parasiticus. Bvffon's Skua. 



This species was very plentifal during the time of our 

 visit, and we were enabled to examine a large series of 

 its eggs. The usual breeding-places are in the higher fell- 

 morasses, though occasionally it nests close to the river — 

 never, of course, in the fir-region. The principal food seems 

 to be decayed lemmings ; it appears to prefer them in this 

 state, as we found " larders " of lemmings in various stages of 

 decomposition round the nests, and the birds when skinned 

 gave out a most offensive smell. They betray their nests by 

 flying round and hovering like Kestrels while uttering their 

 chough-like cry "jeou-jeou." The Finnish name is " Kihu." 

 Occasionally the eggs are of a beautiful sky-blue ground- 

 colour without spots. 



Larus argentatus. Herring-Chill. 



We saw a few on migration in May. 



Larus glaucus. Glaucous Gull. 

 We saw one on migration in May. 



Colymbus septextrionalis. Red-throated Diver. 

 Fairly common, especially on the higher lakes towards the 

 frontier of Norway. 



Colymbus arcticus. Black-throated Diver. 

 Fairly common. 



IV. — Remarks on Schaeffer's * Museum Ornithologicum ' *. 

 By P. L. Sclater, D.Sc, F.R.S. 



In the last number of this Journal ('Ibis/ 1904, p. 550) 

 Dr. Hartert stated his opinion that the generic terms 

 proposed by Schaeffer in his ' Museum Ornithologicum/ 

 published in 1789, " are not admissible/' because the author 

 " did not use binomial nomenclature." I do not quite agree 

 with Dr. Hartert on this subject, and I trust that he will 

 excuse me if I explain my reasons for taking a different view. 



* ' Museum Ornithologicum, exhibens enumerationem et descriptionem 

 Avium, quas nova, prorsus ratioue sibi paratas in Museo suo asservat 

 Diacobus Christianus Schaeffer.' Ratisbonise, 1789. 



