^"^gif^'^] Recent Literature. 419 



other supplementary data. Notes published elsewhere are included with 

 proper references in order to make the supplement as complete as possible. — 



W. S. 



Todd on New Neotropical Birds.' — In the course of identifying the 

 South American birds recently acquired by the Carnegie Museum, which 

 by the way amount to some six thousand skins, Mr. Todd has found a 

 number which are apparently undesciibed. 



Mr. Carriker's Venezuela collection yields the following, Arremonops 

 tocuyensis, Saltator orenocensis rufescens, Schistochlamys atra aterrima, 

 Compsothlypis pitiayumi elegans, Pheugopedius macrurus annectens, Troglo- 

 dytes solitarius, Craspedoprion intermedius, Myiobius modestus, Myiochanes 

 ardosiacus polioptilus, Myiodynastes chrysocephalus cinerascens, Mnche- 

 tornis rixosa flavigularis and Euchlornis aurelpectus f estiva. From Trinidad 

 is described Tangara guttata trinitatis, from the Santa Marta district, 

 Colombia, Sporophila haplochroma and Penelope colombiana. There are 

 also described Tangara guttata eusticta from Costa Rica and Piayarutila 

 panamensis from Panama, the type of the latter being in the Museum of 

 Comparative Zoology. Mr. Todd promises full accounts of the Carriker 

 Venezuelan Collection and a collection made in Boh via by Jose Steinbach; 

 at an early date.— W. S. 



Coward's 'The Migration of Birds. '2— This little book is intended 

 as a popular treatise on the subject of bird migration and being obviously 

 a compilation one does not look for anything original in its pages. It will 

 imdoubtedly give the novice much information on this interesting subject, 

 but it is to be regretted that a little more discrimination was not shown in 

 the weight given to the different sources of information, and that the author 

 could not have shown more personal knowledge of his subject in his hand- 

 ling of it. 



Gatke comes in for continual criticism, while statements of more favored 

 authors are quoted as facts, whereas they had, in some cases, much better 

 be regarded as theories still subject to confirmation. The speed of certain 

 species of migrating birds in North America quoted from Prof. Cooke's 

 papers is a case in point. No doubt his theory of the advance of the Robin 

 may prove correct, but in view of the variabiUty of records of arrival of 

 various species at nearby locahties, it will require much more data before 

 we can be positive of its speed in the interior of British America. 



Mr. Coward gives a bibliography at the close of his volume which is by 



1 Descriptions of Seventeen new Neotropical Birds. By W. E. Clyde Todd. 

 Ann. Carnegie Mus., VIIT, No. 2, 1912, p. 198-214. 



2 The 1 Migration 1 of Birds. | By | T. A. Coward | Cambridge: | at the Uni- 

 versity Press I New Yorlv: | G. P. Putnam's Sons | 1912. (The Cambridge Man- 

 uals of Science and Literature.) Small 8vo, pp. i-ix -1- 1-137, with 4 maps. 

 Price, 40 cents. 



