458 HODGE. [Vot. IX. 
This necessitates a brief description by way of supplementing 
the table. 
The experiment was begun at noon, Dec. 7, and during the 
first five hours the nuclei decreased in size and became 
irregular in outline. By the next morning the nuclei had 
somewhat regained their rounded outline, though remaining 
small ; and appearance of both protoplasm and nuclei showed 
little or no change for two days, beyond the retraction of the 
protoplasm from capsule to envelop closely the nuclei. Dur- 
ing the fourth day granules in protoplasm and nuclei appeared 
in violent commotion. My notes for this day contain the 
words, ‘cells alive with bacteria.’”’ An incrustation of salt had 
formed around edges of cover-slip in places. In washing this 
off with distilled water, a little ran under the cover-slip, and 
the nuclei were observed to swell. It was expected that the 
‘‘bacteria’”’ would leave little of the cells to be seen next day. 
On the contrary, by the morning of the fifth day all movement 
of granules had subsided, and nuclei and protoplasm had 
regained, to all appearances, their former condition. Upon the 
morning of the sixth day, however, the nucleoli of two of the 
cells had entirely disappeared, and the outline of the nuclei in 
these cells could scarcely be distinguished. In the third cell 
the nucleus was visible, though faintly, and contained a small 
speck of still highly refractive nucleolar matter. On tapping 
the cover-slip lightly to dislodge a mass of débris which had 
floated out so as to obscure some of the cells, they all flew to 
pieces, and the experiment was at an end. 
Experiment 4 also deserves a word of explanation. An 
attempt was made in this case to obtain, by shoving the 
secondary coil to 0, the greatest possible effect in the shortest 
time. Contrary to expectation, however, no change could be 
observed at first. Very little occurred during the first three 
hours, and the nuclei remained round and clear during nearly 
twenty-one hours of this extreme stimulation. Three more 
experiments, not given place in the table, were tried with coil 
in same position, and with the same result. Motile protozoa 
were next submitted to the same stimulation. Paramoecia 
were found to be killed almost instantly. At least they showed 
