Recently published Ornitliological Works. 661 
United States who turned his attention to birds other than 
those of North America. It is prefaced by a well-written 
sketch o£ Cassin's life and work (prepared by Mr. Witmer 
Stone) and gives a portrait of that excellent ornithologist^ 
whose personal acquaintance Sclater had the pleasure of 
making when he visited Philadelphia in 1856 ! The papers 
included are entirely of local interest. 
110. Dubois' ' Synopsis Avium/ 
[Synopsis Avium. Nouveaii Manuel d'Ornitkologie par Alphonse 
Dubois. Fasc. IX., X. Royal 8vo. Brussels, 1901-2. 6 francs per 
livraison.] 
In these two parts of the ' Synopsis Avium ' (see Ibis, 
1902, p. 338) the enumeration of the Oscinine series is con- 
tinued to its end, and the few Pseudoscines conclude the 
volume, which contains altogether 729 pages. The species 
recognised in it are 9417 in number. The Introduction^ 
Titlepage, and Contents of the first volume of the ' Synopsis ^ 
are contained in the tenth livraison. 
Dr. Dubois has adopted SundevalFs division of the Class 
Aves into '^ Gymnopsedes '' and " Ptilopsedes.'''' The first of 
these sections is now concluded; the Ptilopsedes will be 
treated of in the second volume. 
111. Finsch on the Zosteropidse. 
[Das Tierreicli. Lieferung 15. Zosteropidae, bearbeitet von Dr. Otto 
Finsch. 56 pp. Berlin : Friedliinder, 190L] 
By some mischance the 15th Lieferung of ^Das Tierreich/ 
containing Dr. FinscVs synopsis of the Zosteropidae, which 
is dated March 1901, has only lately come to our notice. It 
was quite appropriate that this group of birds should be 
worked up in the Ley den Museum, which contains an 
excellent, if not unrivalled, series of Zosteropine forms. 
After an account of the literature of the subject, and two 
pages of general introduction. Dr. Fiusch proceeds to con- 
sider the family, and wisely decides to allow only three valid 
genera — Zosterops, Pseudozosterops, and Lophozosterops. To 
typical Zosterops the author assigns no less than 138 species, 
2x2 
