10 



scheme without any diagnostic characters. In any linear classification 

 we must come to a full stop every now and again, and in reality 

 Dr. Sclater has softened the number of " breaks " in the system as far 

 as could be expected, and the only really serious ones occur at the end of 

 the Psittaci, when the Owls are separated from Steaiornis by the inter- 

 position of the Parrots, and the Columbcs have to take up the running 

 after the Anseres. This memoir brings the subject of the Classification 

 of Birds up to date, and embodies the results of all the recent work of 

 Huxley and Parker, Garrod and Forbes, Nitzsch and Sundevall ; while, 

 as Professor Newton has very justly pointed out, there are some very 

 valuable improvements and additions, the results of the author^s own 

 long experience. 



The following is Sclater^s proposed arrangement : — 



Class AVES. 



Subclass I. CABIN ATM. 

 Order I. PASSERES. 



i. OsciNES a. Turdidae. 



b. Cinclidae. 



c. Sylviidae. 



d. Paridse. 



e. CerthiidEe. 



/. Troglodytidse. 

 g, Motacillidae. 

 h. Mniotiltidae. 

 i. Hirundinidse. 

 j. Vireonidae. 

 k. Laniidae. 

 I. Ampelidae. 

 m, Ccerebidse. 

 n. Tanagridae. 

 0. Fringillidae. 

 p. Alaudidae. 

 q. Icteridae. 

 r. Corvidse. 

 ii. Oligomyodje «. Oxyrliamphidae. 



b. Tyrannidse. 



c. Pipridae. 



d. Cotingidae. 



e. Phytotomidae. 

 /. Pittida9. 



g. Pliilepittidae. 

 h. Eurylaemidae. 

 iii. TRACHEOPHONiE «• Dendrocolaptida?. 



b. Formicariidae. 



c. Pteroptochidje. 

 iv. PsEUDOsciNES «. Atrichiid^. 



b. Menuridae. 



