Gr. H. F. Nuttall, H. B. Fantiiam and A. Porter 337 
noted that intracorpuscular parasites seemed at times to disappear 
completely. 
Appearances seen in vanished corpuscles: When, as occasionally 
occurs, the corpuscles lose their haemoglobin or “ vanish ” the parasites 
may be distinctly seen within the circular contour of the “ ghost ” of the 
corpuscle. When the corpuscles vanish, the parasites rapidly lose their 
shape and undergo degeneration, small spherical masses of protoplasm 
being formed from the substance of the parasite, which ultimately 
vanishes (Diagram 3 A). Two or more separate parasites may thus be 
distinctly seen within the outline of a vanished corpuscle. At times the 
clearer view obtained of the parasites in a vanished corpuscle reveals the 
bands uniting parasites which previously appeared to be discrete 
(compare Diagram 4 D, 134' and 250'). 
Diagram 4. 
Fig. A. Selected series of figures illustrating the movements of three intracorpuscular 
parasites during the period 15'—84'. The parasites were kept under observation for 
279 minutes, during which period they remained active, but no multiplication took 
place. Observation at 43° C.; 8. in. 09. (A. P.) 
Fig. B. Selected series of figures, etc., of four parasites 10'—36'. No change had 
occurred after 7 hours 40 minutes. Observation at 15—16° C.; 6. m. 09. (H. B. F.) 
Fig. C. Selected series of figures, etc., of seven parasites, 20'—70'. Although the obser¬ 
vation continued 2 hours no result could be recorded. Observation at 42° C.; 9. m. 09. 
(A. P.) 
Fig. D. Selected series of figures, etc., of “8 parasites,” 47'—250'. The corpuscle 
vanished in the end (250'), and but 5 parasites could be counted. Observation at 42°C.; 
6. in. 09, (H. B. F.) 
