928 ON A REMARKABLE BACTERIUM PROM WHEAT-ENSILAGE. 



Whether this micrococcus, or the other Schizomycetes obtained 

 from the wheat-ensilage in question, (Plate XII, fig. 1, x, y, z,) is 

 pathogenic or not, has not yet been ascertained, as experiments on 

 animals have not yet been tried. Unfortunately I am not in 

 possession of preserved pieces of any of the organs of the horses 

 which had been feeding on the ensilage, and afterwards succumbed 

 to the reported epidemic. A microscopical examination of such 

 organs would, undoubtedly, have proved a material aid in the 

 elucidation of the question. 



EXPLANATION OF PLATE XII. 



Fig. 1. — Part of a plate-cultivation in 10% nutrient gelatine of an infusion 

 of the wheat-ensilage. The white colonies, x, belong to the 

 Streptococcic described above ; y, yellowish-green colonies of 

 short bacilli liquefying the gelatine ; z, bluish-white colonies of 

 another bacillus. 



Fig. 2. — a, b, c, d, e. Some of the Streptococcus-colonies in a more 

 advanced state of growth. 



Fig. 3. — a to 1. Microscopical appearances of the Streirtococcus (diagram- 

 matic). The zones round the cocci represent the bright peri- 

 pheral capsules observable in Bacteria. 



Fig. 4.— Cultivation of the Streptococcus on potato (p. 927). 



