448 Recenthj imhUshed Oraithological Works. [Ibis, 



deceased members of the American Ornithologists^ Union 

 up to the end of 1914. The names are 275 in number, 

 and under each are given the full Christian names, a refer- 

 ence to a memoir or notice either in the pages of the 'Auk' 

 or elsewhere, place and date of birth and death, and age 

 at death. The amount of research and correspondence 

 required to prepare such a list as this is incredible, and we 

 must congratulate Mr. Palmer on having carried through a 

 most useful and valuable piece of work. 



Petronievics and Woodward on Archseopteryx. 



[On the Pectoral and Pelvic Arches of the British Museum speci- 

 men of Archceoptei-yx. By Branislav Petronievics and Arthur Smith 

 Woodward. Proc. Zool. Soc. 1917, pp. 1-6, pi. i.] 



Some farther development of the slab which contains the 

 remains of the British Museum example of ArchcBopteryx 

 has been recently undertaken, and some of the preliminary 

 results are given by the authors of this paper. The coracoid 

 has been uncovered and is found to meet with the scapula 

 at a wide angle and to be fused with it — a condition of 

 things which resembles that in certain Mesozoic reptiles, 

 rather than in any recent birds. The pelvis has also beeu 

 freed from the matrix in which it lies, so that the relations 

 and shape of the bones can be seen. The pubis meets its 

 fellow of the other side and forms a symphysis, and this 

 only occurs among existing birds in the Ratitse ; but in 

 most respects, as Avith the pectoral, the pelvic arch is very 

 much more reptilian than avian. Mr. Petronievics believes 

 that the difference between the British and Berlin Museum 

 specimens is sufficiently important to necessitate the placing 

 of the latter form in a separate genus, for which he proposes 

 the new name Archaornis. 



Storer on the care of " separates." 



[The care of pamphlet collections. By Tracy I. Storer. Science, 

 New York, xliv. 1916, pp. 735-739.] 



Nearly ail working zoologists are worried by the problem 

 of how to preserve and arrange the ''separates" which 

 accumulate so rapidly, and which are so valuable if easily 



