Mr. A. R. Wallace on the Natural Arrangement of Birds. 215 



normal form. There is also a remarkable moderation in size; 

 for though the species are so numerous, there are none either so 

 large or so small as are to be found in the two abnormal groups. 

 There is also a much greater uniformity in texture of plumage 



-ab ei mj^sDiagram of the Affinities of the Scansores. 

 jfififlil./*; 



\irr BUCCONID^aE. 



(Megalaima.) 



and in form, as well as in habits, which binds the whole into one 

 compact and natural group. It is also a most important point 



