IJ4, OBSKRYATION8 AND EXPERIMENTS ON PUS. 



Visible curdy 2. That the visible curdy masses, as well as the fibrous 

 jBasacs. or leafy purls, aliDOst always contained in smaller or larger 



quantities in pus, may be considered as self-coagulated 

 lymph, which in its fluid state is secreted without having 

 the state of aggregation produced in it like that of the 

 «5<?Jjf2a/ opaque oxide of pus. — Sisct. VII, I. 

 Red or dark 3. That the reddish, the blackish, and the dark brown 



colour of pus. colour of pus depends upon the red part of the blood effused 

 or secreted from thes&me vessels, or from contiguous ones 

 which secrete pus. 

 . 4. That on some occasions the clotty and irregularly 



Hiajses. figured masses found in the pus may depend upon disorgani- 



zation or breach of the contiguous solid parts. 

 Fcetor. 5. That whenever pus is foetid to the smell, a portion of 



it is in the slate of putrefactive fermentation, which may be 

 removed by ablutions with water. 

 AdTcntitiou? Q, That there are certain adventitious matters liable to be 

 *°"tu:^'°"^ contained in pus not hitherto rendered palpable to the 

 senses, but known by their effects in exciting contagious 

 diseases; such as small-pox, syphilis, &c. These matters 

 are produced by a specific action in the secretory organs of 

 pus, by such matters themselves either contained i« the. 

 circulating blood, or on the secreting surface. 

 Secretion of 7* That the essential substances of which pus consists, as 

 pus from the well as sorne of the adventitious ones (Sect. VII, 1, 2, 3, 6), 

 are separated from the blood by a peculiar organization be-, 

 longing, or attached to the blood-vessels: which organs of 

 separation or secretion are not only excited to the action 

 which produces pus in deseased states, but they are evidently 

 influenced by the states of other distant organs of the animal 

 oeconomy; hence many varieties inthe properties of the pu- 

 rulent matter. 

 Sources of the 8. That the varieties of purulent matter relate to diffe- 

 ditterences of jg^ces of quantity — the proportion of the essential siibstances 

 (1)— and theadveotitious parts ift, 3, 4, 5, 6,). The 6ream- 

 /^/ce [)us consisting of almost purely the opaque, oxide and 

 limpid liquid (I, 1, 2,). The curdy containing a large pro- 

 portion oCcoagulated lymph, or brokeii down solids. Th? 

 serous abounding in li,mpid-,flui4. Tl>? jciscirf, depending 



. upon 



