MICROPHYTES FOUND IN THE BLOOD. 385 



various stages in their development correspond in every particular 

 — the only difference which distinguished them being that, 

 Mv\ieTQ2i% Bacillus anthracis presented no movements, the bacillus of 

 hay solutions did. This distinction, as has already been stated, 

 has disappeared. Cohn's figure of the hay-bacillus is reproduced 



Pig. 13. — Bacillus mbtilis : formed ou the surface of a boiled infusion of 

 hay which had stood 24 to 48 hours (after Cohn). x 650 diam. 



(fig. 13), as it may, in the absence of the original paper, prove 

 useful to such as would wish to get a clear conception of what 

 Bacillus anthracis itself is like by examining so easily obtainable a 

 substance as a littJe of the scum which forms on the surface of 

 an infusion of hay. 



F. — The Vegetable Organisms found in Healthy Blood after death 

 considered in relation to the Bacteria and Bacilli of Diseases. 



Several years ago Dr. Cunningham and myself were, whilst 

 conducting various observations together, frequently struck with 

 the rapidity with which organisms appeared in the blood and 

 tissues of animals after death in this country. The microphytes 

 were not hmited to minute spherical and elongated bacteria, but 

 there were also present well-marked staves and filaments. In a 

 report submitted by us in 1872, and again in 1874,i we drew 

 attention to this matter and suggested the similarity between 

 them and Davaine's bacteridia. A figure of these organisms, 

 which were pubHshed by us at the time, is here reproduced 

 (fig. 14) 



A short time ago a circumstance occurred which drew my 

 attention again in a special manner to these organisms. Mr. 

 Hart, a veterinary surgeon in Calcutta, forwarded to me for ex- 

 amination a little perfectly fresh blood which he had removed from 

 a horse which had died that day of well-marked anthracoid dis- 

 ease. His curiosity had been aroused as to the microscopical 



' " Cholera," ' Microscopical and Physiological Researches,' 1st and 2ud 

 series, 1872 and 1874. 



