S8 The Farmer's Yeterinary Ad/oiser. 



found in the animal flnids these may be distinguished 

 (after Du Baiy) as follows : 



I. AsporecB. That don't form Spores. 

 1. Cocci. Round or ovoid cells. 



a. Micrococcus. Very minute round or ovoid cells ; 

 singly, in chains, or in formless gelatinous 

 masses. 

 h. Macrococcus or " Monas." Larger round or ovoid 

 cells. 



c. Diplococcus. Cells in pairs. 



d. Staphylococcus. Cells in groups. 



e. Streptococcus. Cells in fine chains. 



f. Sarcinse. Cells in cubes of four or eight. 



g. Ascococcus. Cells in larger irregular colonies or 



groups. 

 11. ArtlirosporecB. Form Spores — by segmentation. 

 a. Bacterium. Short rods. 

 5. Leptothrix. Rodlike cells remaining united in 



very fine filaments. 



c. Cladothrix. Filaments with apparent branching. 



d. Spirochete. Long flexible sinuous filaments. 

 III. EndosporeoB. Form Spores within the mother cell. 



a. Bacillus. Filament short, straight, or bent ; rigid, 



with distinct joints. 

 h. Yibrio. "Wavy, very flexible filament. 

 c. Spirillum. Short spiral rigid filament. 



Many microphytes are furnished with delicate mobile 

 filaments by which they move actively in spite of their 

 rigid forms, and whip into active motion small bodies (cells, 

 granules) in their vicinity. 



The form and mobility of microphytes are by no means 

 constant. The rigid bacillus may, in different media out of 

 the body, grow out into long waving branches, forming 

 spores, and even into beautiful net-works. Organisms, too. 



