146 HUNTINGTON. 



CONCLUSION. 



I have brought this question to the attention of the Academy 

 because I think it is high time to correct the erroneous views 

 founded on Aeby's work. This is the more important, because 

 his theories have been extensively transcribed and his diagrams 

 reproduced in such of the anatomical text-books as deal with 

 the matter at all. I subjoin a list of the anatomical handbooks 

 most commonly in use with a brief statement of their expres- 

 sions on the subject. 



1. Quain, ''Anatomy," Vol. Ill, Pt. IV, p. 1 76-1 7 9, follows Aeby's 

 description, giving reproductions or reconstructions of three figures 

 (195, 196, 197) and a somewhat extensive abstract of the text, 

 stating that the right eparterial bronchus in man is not represented 

 on the left side, and that accordingly the lobe which it supplies is 

 also absent, making the upper left the homologue of the middle right 

 lobe. 



2. Morris, Henry, '' Human Anatomy," Phila., 1893, p. 939- 

 940, gives a very indifferent diagram of the ventral view of lungs, 

 heart and pulmonary root, indicating on the right side bronchus, 

 pulmonary artery, and pulmonary vein in the order named cephalo- 

 caudad ; on the left side in the same order pulmonary artery, bron- 

 chus, pulmonary vein. 



The text merely repeats this information in a brief statement. 



3. Gray, Henry, "Anatomy, Descriptive and Surgical." New 

 American Edition from the 13th English Edition, Philadelphia, 1897. 

 P. 1 109 gives a diagram (Fig. 706) of the human bronchial tree 

 after Aeby and a brief description founded on Aeby's work. P. 1 1 1 7 

 gives in Fig. 710 a faulty view of the ventral aspect of the pul- 

 monary roots, follows it (p. 11 18) with the stereotyped description 

 of the order of relations of the structures at the root of the lungs, and 

 concludes (p. 11 21) with a xylographic horror purporting to present 

 the roots of the lungs from behind (Fig. 711). 



4. Wiedersheim, Robert, ''Lehrbuch der Vergleichenden Ana- 

 tomic derWirbelthiere," 2te Auflage, Jena, 1886, p. 262-266, gives 

 in extenso Aeby's diagrams and conclusions, amplified by the in- 

 vestigations of M. Weber. 



5. Wiedersheim, Robert, ''Elements of the Comparative 

 Anatomy of the Vertebrates' ' adapted from the 3d German edition, 

 by W. N. Parker, London, 1897, p. 269. 



