190 



THE FLUIDS. 



Fi S- 104 - Mucosine (pyine), and caseine, 



are only abnormal constitu- 

 ents of pus-serum (Lehmann), 

 as are also bile-pigment, resin- 

 ous bile acids, urea, and sugar. 

 It is the mucosine which forms 

 the filaments seen in Fig. 107. 

 It was called pyine by Giiter- 

 bock. 



2. Accidentally, blood-cor- 

 puscles, epithelial cells, exu- 

 dation-cells, and fragments of 

 tissues (Fig. 105) maybe found 

 in pus ; but the only normal 

 histological element is the cy- 

 toid (pus) corpuscle, except 

 occasionally minute fat-glo- 

 bules. 



Pus-corpuscles (Fig. 106) have 

 already been described under 

 the head of cytoid corpuscles 

 (p. 146), they being vesicles 

 consisting of a cell-membrane often appearing granular, with a nu- 

 cleus adhering to it, and viscid hyaline contents. They average 



Fig. 106. 



Exudation-cells and nucleated fibres in pus. a. 

 Large granulous exudation-cells. b. Pus-corpus- 

 cles, c. Nucleated fibres, d. Pus-corpuscles, their 

 nuclei being brought out by acetic acid. a'. Granu- 

 lar exudation-cells after action on their nuclei of 

 water. 



Fig. 105. Other histological elements, in pus, in an incipient state of fatty degeneration. The 

 granular corpuscles (a) are pus-corpuscles ; the open rings (&) with borders are red blood-corpuscles ; 

 the sharply-defined circles are fat-globules. Two epidermic cells (c), with an oval nucleus are 

 also seen, and a coagulated mass with molecules (d). (Wedl.) 



Fig. 106. Pus-corpuscles, a. Natural appearance. 6. After acetic acid. 



from 3 ^ ^ to 24^3 of an inch in diameter, being usually larger 

 than the cytoid corpuscles of the blood, and smaller than those of 

 saliva. They, however, vary in different circumstances, being all 

 small in an abscess, and all large in a wound. ( Vogel.) They also 

 vary in appearance in different states of the organism as in phthi- 

 sis, in typhus, and in the cancerous dyscrasia. (Lehmann.) Besides, 



