358 Action of Tobacco Smoke 



(4) Zebrowski, Centralbl. t. allgeni. Path. u. path. Anat., 1907, vol. iviiu 

 p. 337. 



(5) Harvey, Recent work (not yet published) from tlie Pharmacological 

 Laboratory, Cambridge. 



DESCRIPTION OF PLATE. 



The figures represent photographs taken under a moderately high power of the 

 microscope of part of the wall of the aorta of a rabbit which had been caused to 

 inhale tobacco smoke at intervals during five months before being killed. For further 

 description see text, pp. 356, 357. 



