116 



Prof. A. Reichenow on the 



purpose of avoidiui^ ambiguity, the amateur frequently is 

 led into using lengthy explanatory terms, whilst the expert 

 is able to utilize the accepted technical expressions. It is 

 not always easy for the casual ornithologist to obtain the 

 knowledge of these " technical " words, often because he is 

 unable to gain access to works in which they are explained, 

 or through ignorance of any publications where explanatory 

 diagrams can be found. I have been repeatedly requested 

 by a number of persons to publish an ornithological glossary 

 of this character in my Monthly Journal, and I have accord- 

 ingly drawn the subjoined diagrammatic figure, which may, 



.fofilxeAO 



I fm/n/ifr/es . 

 IT Secoi^D/iffies 

 UT PfUMfiity coyEfTTS 

 IV GRE/trefi IV/Ns cnye/frs 

 V Meoz/in CO^EftTS 



Vn. BfisTAffo-yv"^ii 



The Nomenclature of the External Portions of a Bird's Anatomy. 



perhaps, serve as a basis for a universal nomenclature ; it 

 has the further recommendation of having been adopted by 

 other authors, as, lor instance, by Hartert in his ' Birds of 

 the Palsearctic Fauna.' 



Next to the German words are added the correspond- 

 ing English expressions as used by Dr. Sharpe and others 

 in the ' Catalogue of Birds in the British Museum,' the 

 Italian terms as used by Arrigoni in his 'Manual of Italian 



