Fig. in text:

'The effect of the attack of an oxyphil cell upon the aspect of the bacillus is interesting. A living growing B. filamentosus or B. anthracis under a high power has a dull translucent appearance, and shows no trace of structure beyond the brighter transverse lines which mark the junction of the segments of the chain. The effect of the attack may be limited to an increase in the refractive index of the material, which may be slight or may result in the development of a double contour. Fig. 8 shows the end of a chain of B. filamentosus before and after the attack of a cell. The coating of slime holding the remains of three oxyphil granules is very obvious. The effect of the attack sometimes is to make the contents of the rodlets appear curdled and discontinuous; and they seem to shrink away from the cell wall.' (368-369)