The Structure of Colored Blood-Corpuscles. 285 



Braxton Hicls 1 observed colored blood-corpuscles of various 

 shapes in fluid from an ovarian cyst, and in blood in other 

 pathological conditions. 



Huels 2 described frog's red blood-corpuscles acted on by 

 carbolic acid. 



Faber z observed, in the urine of a patient with Bright's 

 disease, colored blood-corpuscles of a great variety of different 

 shapes, some of which showed him phenomena of contracti- 

 bility and amoeboid movement, "very similar" to those of 

 colorless blood corpuscles. 



Hiiter^ reported seeing in the capillaries of the frog lung a 

 few red blood-corpuscles adhere to the sides by means of a 

 drawn-out pedicle, with half the body on each side, having 

 a saddle-bag like shape (" zwergsacTcdhnlich "). 



Zaptschinsky described and figured 5 the effects of various 

 reagents, among them aniline blue, magenta, and tannin, on 

 the red blood-corpuscles of triton and man. He confirmed and 

 enlarged the older observations of Roberts.* Zaptschinsky 1 t 

 also described some variations of shape which he met with 

 on examining human blood in different diseases. 



Arnold 8 in the cour;e of his observations on diapedesis of 

 colored blood-corpuscles after ligating the median vein of the 

 frog's tongue, saw that in the various phases of transit these 

 corpuscles assumed various shapes, sometimes pear-shaped, with 

 slender stem, sometimes caudated, oval, etc. Similar shapes 

 have under similar circumstances been described by others. 



(1) Observations tit. Quart. Journ. Microsc. ScieDce, vol. XII. (1872), p. 114. 

 (2 1 " Wirkung der Carbolsaure auf rothe Froschblutkorperchen." Inaug. Dissertation 

 Greifswalde 1872 43 pp. 



(3) 'Ueb r die rothen Blutkbrperchen." Archiv der Heilkunde, 1873, XIV, p. 481-511. 



(4) " Ueber den Kreislaui uud die Kieislaufstbrungen in der Froschlunge." Centralblatt 

 fiir die Medicicischen w issenschaften. 1873 No 6 p. 82. 



(6) • Ueber das Verhalten der rothen Blutkbrperchen zu einigen Tinctionsmitteln und 

 zur Gerbsiire." Sitzungsberichte der Wiener Akademie, Vol. 68 (1873) Div. Ill, p. 148, 



(6) "On peculiar appearaiices exhibited by blood corpuscles under the influence of solu 

 tion of magenta and tannin " Quarterly Journal of Microscopical >cience 1863 p. 17J. 



(7) "Zur Pathologic des Blutes," Centralblatt f. d. med. Wiss,, 1874, No. ±A, pp. 660 and 

 661. 



(8) "Ueber Diapedesis." Virchow's Archiv, vol. 58 (1873), pp. 203-254. 



