JiOO Mr. A. Newton on the Irruption of 



les menies dunes une seconde couvee, composee de deux oeufs 

 pareils aux premiers." (N. T. D. pp. 222, 223.) This very inter- 

 esting notice gives us thus good reason to beheve that Denmark 

 was not the only country in Europe where this Sand-Grouse bred 

 last year. The author of it also states that, on the 17th June, 

 three females were obtained at Zandvoort, out of a flock of about 

 forty. Two of these are now in his collection ; the third, being 

 only wounded, was sent to the Amsterdam Gardens, where, 

 however, it only lived five days. A few days afterwards, an- 

 other was found dead on the beach at the same place ; and on 

 the 5th September three males and two more females were 

 killed there. On the 11th September, when he was writing, a 

 few birds still continued to haunt the locality, a flock of fifteen 

 keeping constantly on a field sown with buck-wheat, while a 

 larger company of about thirty were leading a nomad life on 

 the sand-hills. Heer Crommelin, in the course of his paper, 

 which is of some length, dwells on the history of this curious 

 species, and further remarks on the singularly dirty appearance 

 presented by the specimens obtained some weeks after they had 

 arrived in Europe, so different from that of the examples first 

 killed. This appearance has been noticed by many English 

 ornithologists who have had much experience of our visitors, 

 and seems worthy of more attention than it has received ; for I 

 am not aware that it has been accounted for, though Heer 

 Crommelin makes some suggestions on the subject. N. T. D. 

 pp. 219-225. 



46. Nordwijk, 4° 27' E. One killed after 17th June, now in 

 the Leyden Museum. Heer J. P. van Wickevoort Crommelin, 

 N.T.D.p.223. 



47. Wassenaar, 4'' 25' E. A female killed 9th June, now 

 in the Leyden Museum : it contained well-developed eggs. 

 Another killed later, also in the same museum. Heer J. P. van 

 Wickevoort Crommelin, N. T. D. pp. 222, 223. 



48. St. Quentin, 3° 15' E. ?* A female killed by M. de Tur- 



* I append a mark of doubt in this case, because I do not feel sure that 

 I have quite rightly identified the locality mentioned. M. Marchand speaks 



