Conversations on chemistry [microform] : in which the elements of that science are familiarly explained and illustrated by experiments and plates. To which are added, some late discoveries on the subject of the fixed alkalies, by H. Davy, esq., of the Royal society. A description and plate of the pneumatic cistern of Yale college. And a short account of artificial mineral waters in the United States. With an appendix, consisting of treatises of dyeing, tanning and currying.