I 2 8 ON THE MO VEMENTS 



On the Movements occurring in ordinary living Pus. 

 I propose now to bring forward evidence which seems 

 to me conclusive as to the mode of growth and multi- 

 plication of pus corpuscles, and which, I think, goes 

 far to show how living particles, so minute that they 

 may be transferred considerable distances without loss 

 of vitality, may be produced. 



There is certainly no true cell-wall in the case of 

 living pus, for protrusions of the matter of which pus 

 corpuscles consist may occur upon every part of the 

 surface, and not only so, but some of these protruded 

 portions, after moving a considerable distance away 

 from the mass, become disconnected from it, and thus 

 new pus corpuscles are produced. It is in this way 

 that the very rapid multiplication of pus corpuscles is 

 effected. 



In pus from the bladder, movements even more 

 active than those in the mucus corpuscle are very 

 easily observed, and when fresh, not a single spherical 

 corpuscle can be found. See Fig. 52, plate XV, repre- 

 senting some of the many different forms of pus 

 corpuscles present in a very small quantity of pus. 

 Every corpuscle exhibits a great number of these 

 protrusions, and every protrusion might be detached 

 and form a free pus corpuscle, Figs. 52, 53. Little 

 particles are sometimes detached, and these are often 

 so minute (less than -j-ooVoo- f an mcn m diameter) 

 that they might be supported by the atmosphere and 

 thus transported to a distance while yet alive. 



