me. Some doubt having been raised as to the identity 

 of this specimen, I sent it, with Mr. Tuck's permission, 

 to Professor Newton, who, in reply, assured me that 

 there could be no doubt about its being a genuine 

 Briinnich's Guillemot. The third on my list was picked 

 up by Mr. Oxley Grabham, of Croxton Villa, Grosvenor 

 Road, Scarborough, who informed me that he found it 

 in Filey Bay, on January 30th, 1895, "being attracted 

 by its size, its light-coloured legs, and the very pro- 

 nounced white line at the base of the upper mandible." 

 My correspondent goes on to say : " It was the largest 

 Guillemot I ever saw, measuring 19| in. in length, 

 from carpal joint to end of longest primary 8^- in., total 

 expanse of wings 28^ in. The tarsi and toes were light 

 yellowish olive, webs dirty brown. In the flesh the white 

 on the throat ran up into a point, as in Mr. Clarke's 

 bird, and not in a rounded arch as in the Common 

 Guillemot. It was a male by dissection." The fourth 

 was obtained by Mr. Grabham at Scarborough on 

 January 31st, 1895, and proves to be a female by 

 dissection. The measurements given by Mr. Grabham 

 were: total length 18| in., wing 7f in., total expanse 

 26 in. Both of these latter birds were very courteously 

 sent to me for examination by Mr. Grabham. With 

 regard to the accompanying Plates, that of the adult in 

 summer plumage with young was taken from specimens 

 obtained by Professor Newton off the coast of Spits- 

 bergen, and kindly lent to me for this work; the other 

 is from the Yorkshire specimens above mentioned. 



