260 Recently published Ornithological Works. 



are informed in the preface, about 200 in number. Seventy 

 more are " non-breeding wanderers " which have occurred 

 fewer than six times, and 59 others ' ' more or less infrequent 

 visitors/' while 38 annually make their appearance on migra- 

 tion or during the colder months. 



We are much pleased to hear that Mr. Howard Saunders 

 has it in contemplation to prepare another volume, containing 

 a similar condensed account of such European species of 

 birds as are not yet known to occur in the British Islands. 



56. Shufeldt on the Osteology of the Water-Birds. 



[Contributions to the Comparative Osteology of Arctic and Sub- Arctic 

 Water-Birds. Part IV. By R. W. Shufeldt, M.D., C.M.Z.S. Journ. 

 Anat. & Physiol, xxiii. p. 537.] 



Dr. Shufeldt continues his studies on the osteology of the 

 Arctic and Subarctic Water-birds (cf. Ibis, 1889, p. 568). 

 He now discusses the Auklets (Ceratorhyncha, Ptychorham- 

 phus, Simorhynchus , &c), of which, however, he has failed to 

 secure a good series for examination, except in the case of 

 Simorhynchus. He describes the skeletons of Simorhynchus 

 pusillus, S. crist at ellus , and Cyclorhynchus psittaculus, and 

 makes various remarks as to their resemblances. 



57. Shufeldt on the Macrochires. 



[Studies of the Macrochires, Morphological and otherwise, with the 

 view of indicating their Relationships and defining their several Positions 

 in the System. By R. W. Shufeldt, M.D., C.M.Z.S. Journ. Linn. 

 Soc. (Zoology) xx. p. 299.] 



This long and elaborate memoir contains a mine of wealth 

 in the way of observations, and, as is always the case in 

 Dr. Shufeldt's papers, is excellently illustrated, but is, per- 

 haps, deficient in definite conclusions. The author harps 

 upon his old theme of the distinctness of the Swifts and 

 Humming-birds. He now, however, we are pleased to see, 

 withdraws from his former position that the Swifts should 

 be arranged among the Passeres, near the Swallows, and 

 proposes to form them into an Order of themselves under 

 the title " Cypseli," to be placed " just outside the enormous 



