nf— I 



PREFACE. 



hen the second International Ornithological Congress 

 was held in Budapest, the capital of the Hungarian 

 Kingdom, in 18Ql,we had the pleasure of welcoming 

 also Englishmen, the first, if 1 am right, who have 

 ever appeared at a continental ornithological meeting. 

 Among them Dr. R. Bowdler Sharpe, the well- 

 known keeper of the ornithological department of the British Museum, 

 chairman of the section of „Systematic Ornithology", submitted a most 

 valuable paper* on this subject. Moreover he honoured us Hungarians 

 by delivering an address on the same matter. 



Thanks to the munificence of the Royal Hungarian Ministry of 

 Agriculture, I am enabled to return the courtesy rendered to us by a 

 member of the B. O. U.', by respectfully dedicating to it the following 

 paper. 



I have intentionally chosen as subject „Recensio critica, automatica 

 of the Dotrinc of Bird- Migration" because this manifestation in Bird- 



* ,,A review of recent attempts to classify Birds; an address delivered before the second 

 International Ornithological Congress on the 18. of May 1891. Budapest". (Published at 

 the Office of the Congress.) 



ea VII B31 



