The Microscope. 



185 



acter of the body containing it may be ascertained by replacing the 

 diaphragm. Fig. lb shows the plasmodia when looked at without 

 the diaphragm, a. with diaphragm. 



^ ^^O > / r 



1-3 



The pigmented granules often exhibit the most marked 

 Brownian movement. The amoeboid movement can be readily fol- 

 lowed even without the use of the diaphragm, by observing the rela- 

 tive position of the pigment masses. Fully two cases of well- 

 marked remittent fever came under observation. In both these, and 

 in all the cases of malarial cachexia, bodies were found which 

 differed from those just described. In preparations of the blood, 

 taken at any time, long bodies, usually curved in the form of a 

 crescent, were found. These bodies are highly refractive, homo- 

 geneous, with sharp outlines, and always contain pigment. This is 

 usually collected in a bunch in the middle of the body. In a few 

 of the bodies the mass of pigment was in the center, and from this 

 long lines radiated toward the extremities. These bodies are from 

 one and a half to three times as long as the diameter of a red 

 corpscules, and not wider than the half of this diameter. Though 

 they are narrower at the ends than in the middle, the ends are not 

 pointed but slightly rounded. While this is the general character, 

 they present considerable irregularity, some being nearly round, 

 others elongated and straight. It was in the oval one that the 

 radiating arrangement of the pigment was most frequently found. 

 They are free in the blood and have no power of motion ; they are 



