g02 Dr. Pearson's Observations 
parcels of pus, after the ablutions just related (a—f), exhibited 
a whey coloured liquor at the top, of which about £ of a pint was 
poured off from them. More turbid liquor was also separated 
from the washed pus, by pouring it upon a porous cotton cloth 
strainer, which left purulent matter of the consistence of starch 
mucilage, amounting to about one half the original weight. 
(h) The pus freed from coagulable limpid liquid by repeated 
ablutions (a — h) was white as snow — equal in consistence 
—perfectly smooth-— the 4th kind was less viscid than before, 
but the others were more so — no smell — not at all disposed 
to putrefy- — on elevating its temperature to 165° and higher, 
it did not coagulate into one mass, nor into clots, or large 
masses of curd, but a watery fluid separated from a fine soft 
somewhat curd-like opaque fluid ; which did not become 
more curdy, on even boiling — it did not appear that above a 
grain of this part, or state of pus, dissolved in 1000 waters — 
was highly globular under the microscope, and remained so, 
although coagulated by nitrate of silver ; by infusion of gall 
nut ; by alcohol; and super-sulphate of alumina— -with muriate 
of ammonia, nitrate of potash, and other neutral salts, and with 
carbonate of potash, it produced a viscid semi-transparent 
mass like expectorated half transparent matter — exposed to 
fire in a plati-na crucible, it was inflamed, but did not emit an 
offensive smell, and after continuing the ignition, the residue 
was a particle of half fused matter, not amounting to -jJL- of 
the pus after ablution, nor above -A_ of the same matter 
exsiccated ; it consisted of phosphate of lime, and vitrified 
matter— no ammonia was perceivable, on mixing lime with 
this washed pus ; nor muriatic acid on adding sulphuric acid. 
b. (a) A tea spoonful of the cream-like pus, being agitated in 
