toe. BOOM Dert. XH .B767 -DT4 &
x
BARILLA.
Dossie, Robert, 4.1777.
Observations on the pot-ash brought from America. With respect to its goodness,sophis- tication, &c. Verified by experimental exam- ination: together with instructions for deter- mining the comparative value of any parcel, by expedient methods: to which, is subjoined, processes for making pot-ash and parilla, in North-America. The whole communicated to the Society for the Encouragement of Arts, Manu- factures and Commerce. by R. Dossie: and printed
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