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about the flxth of a pint; a very flight cloudinefs 
immediately enfued, but no precipitation was after- 
wards obfervable. 
Experiment III. 
Six drops of a folution of fait of tartar occafioned 
a cloudinefs, juft perceptible, in the fame quantity ot 
water; no precipitation enfued. 
Experiment IV. 
Six drops of a folution of faccharum faturni im- 
mediately produced a milkinefs in the water, but 
no fenfible precipitation. 
Experiment V. 
Six drops of a folution of filver in the nitrous acid 
inftantly occafioned a milkinefs in the water ; and 
after ftanding an hour, a grey powder was obferva- 
ble at the bottom of the glafs. 
Experiment VI. 
Ten drops of the infufion of galls neither, pro- 
duced any change of colour in the water at the 
time they were added, nor was the flighted purple 
hue perceptible two hours afterwards. 
Experiment VII. 
A piece of paper befmeared with fyrup of violets 
was dipped into a glafs full of water ; no change of 
«olour enfued. 
Expe- 
