[Annals N. Y. Acad. Sci., XI, No. 8. pp. 127-149, May 17, 1898.] 



THE EPARTERIAL BRONCHIAL SYSTEM OF 

 THE MAMMALIA. 



Geo. S. Huntington. 



(Read February 14, 1898.) 



[Plates XV-XXVIIL] 

 INTRODUCTION. 



During the past five years I have devoted much time to the 

 examination of the mammahan lung in reference to the struc- 

 ture of^the bronchial system and the distribution of the pulmonary 

 vascular supply. In presenting, as a preliminaiy communica- 

 tion, some of our more important results to the Section at this 

 meeting, I may state that the research is by no means completed, 

 although it comprises the detailed examination of over two hun- 

 dred lungs from all orders and many families of the mammalia. 

 Some of the facts established appear to me so conclusive that I 

 do not hesitate to direct your attention to the same, especially 

 because they render my interpretation of the mammalian type 

 of bronchial distribution and pulmonary vascular supply different 

 from the one presented by Ch. Aeby in his valuable monograph 

 '* Der Bronchialbaum der Saugethiere und des Menschen." Inas- 

 much as Professor Aeby's views have been adopted, almost 

 without exception, by the authors of current anatomical text- 

 books and incorporated more or less extensively in these vol- 

 umes, the matter appears to me one of more than common 

 interest and importance. 



The preparations upon which the conclusions stated in this 

 paper are based were obtained almost invariably by corrosion 

 of the injected bronchial system and pulmonary artery, the only 

 methods which I believe can be relied upon to give absolute and 

 satisfactory results. 



I have appended to this paper a nearly complete bibliograph- 

 ical list of articles on the subject which have appeared since the 

 publication of Professor Aeby's book in 1880. 



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