on a Wax-like Substance from Madras. ggg 
( h ) The above distilled liquid (r) did not render nitrate of 
lime turbid ; but 
(i) It produced turbidness in nitrate and muriate of baryt. 
(k) To 500 grains of the reddish coloured liquid obtained 
by melting white lac, I added ley of carbonate of soda, till the 
effervescence ceased, and the mixture neither reddened paper 
stained with turnsole, nor turned paper stained with turmeric 
to a brown colour. The quantity of dry carbonate of soda used 
in the ley was three grains. A quantity of mucilaginous matter, 
with a little carbonate of lime, was precipitated during this com- 
bination. The saturated solution being filtrated and evaporated 
to a due degree, it afforded, on standing, deliquescent crystals. 
(/) A little of the crystallized salt (£) by exposure to fir© 
left only a residue of carbonate of soda. 
(m) The reddish liquid obtained by melting the white lac 
being filtrated, the following precipitants were added ; namely, 
1. Lime-water, which produced alight purple, turbid ap- 
pearance, and on standing, there were just perceivable clouds. 
2. Sulphuret of lime (calcareous liver of sulphur) occasioned 
a white precipitation ; but I could not perceive the smell of 
sulphurized hydrogen gaz, (hepatic air). 
3. Alcohol of gall nut (tincture of gall nut) induced a grey 
precipitation. 
4- Sulphate of iron (green vitriol) produced a purplish co- 
lour, but no precipitation ; nor did any precipitation take place 
on adding to this mixture first a little vinegar, and then a little 
pot-ash. 
5. Acetite of lead (sugar of lead) occasioned a reddish pre- 
cipitation, which re-dissolved on adding a little nitrous acid. 
3 E 2 
