66 THE AMERIOAN MONTHLY [Mar 
ognized, and the vegetable kingdom by every observer. 
It seems they make some new discovery which entitles 
him to place it in one kingdom or the other,—sometimes 
as a whole organism, sometimes as a stage or a portion of 
an organism. 
An ameeba is found in the soil in the fall where malaria 
prevails in Newark, N, J., and most likely at other points. 
It is round or spherical and no nucleus or nucleolus is 
seen. It is stationary, not moving at all and may be kept 
two or three weeks and does not seem to change at allin 
all that time. It is like figure II, Plate V, in Leidy’s 
Fresh-water Rhizopods of North America,1879, under the 
name of Ameba villosa, but as shown by Leidy’s figures 
from 1 to 19 it changes its relations and appearances toa 
vast extent. In short it makes various appearances and 
shows as amceba proteus, verrucosa and radiosa, in fact 
others also. 
We cannot distinguish by appearances one of these 
amcebas from another, and they cause or do not cause dif- 
ferent relations in various animals and vegetables when 
they come into contact with them. 
When the chyle or limph is examined, it is found to con- 
tain certain objects which are alike and, in fact, are, as far 
as we know, amceba. They have the appearance of amee- 
ba and these are also found in blood along with red blood 
corpuscles. They are known as “white” or “colorless cor- 
puscles” or “leucocytes.” They are mentioned as “ame- 
. boidin motion.” In fact they are ameba and have all the 
qualities of an ameeba, and take up food and other appa- 
rently unassimilable bodies like any other an ceba. But 
the strangest thing about ameceba, and this applies to the 
leucocytes likewise, is that they are present in large num- © 
bers when the individual suffers from what is called ma- 
larious fever. Thisis the parasite which has so world-wide 
a reputation as being the cause of or atleast accompanied 
by malarial fever. 
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