238 THE SCOTTISH NATURALIST 



(Catalogue of British Echinoderms, p. 184) that the species is absent 

 from the Shetland area, for in his Report to the British Association, 

 1868 (1869, p. 314), Norman says that it is "often brought up on 

 long lines from the Middle Haaf, Outer Skerries." Except for 

 the present I know of no record from the northern shores of the 

 Scottish mainland. James Ritchie, Royal Scottish Museum. 



BOOK NOTICE 



Report on the Immigration of Summer Residents in the 

 Spring of 191 i : also Notes on the Migratory Movements 

 during the Autumn of 1910. Bull. Brit. Orn. Chib, vol. xxx. 

 6s. net. 



This Report is again of an elaborate and interesting character ; it is 

 arranged in the same way as last year, but two sections have been 

 added at the end of the spring and autumn records respectively, 

 containing isolated notes on various interesting species ; many of these, 

 however, have already been published elsewhere. The Scottish notes, 

 with very few exceptions, are taken from the Scottish Naturalist and the 

 Report on Scottish Ornithology, and are therefore probably already 

 familiar to readers of this journal. One of the most striking movements 

 noted is that of the Water-Rails in spring. Numbers of these birds 

 are recorded in the end of March and beginning of April from the 

 lanterns of Bardsey Light, St Catherine's Light, Portland Bill, and a 

 few from the Outer Dowsing Light-vessel, and many again at the first- 

 named station on the night of 30th April to 1st May. It is unusual to find 

 Water-Rails moving in such numbers. In the autumn the large immigra- 

 tions of northern and continental forms are notable, and altogether much 

 may be learned from a careful study of the excellent material laid before 

 us. We notice, however, that the dates given in the maps and those in 

 the chronological summary of the records do not always agree, and we 

 consider that many of the inferences drawn in this work are arrived at 

 on too slight evidence, and may, in the future, have to be considerably 

 modified. In spite of the defects noted, the Report is a valuable addition 

 to the literature of this engrossing subject, and reflects much credit on 

 the recorders and compilers who are responsible for its production. 

 L. J. R. and E. V. B. 





