Vlll PREFACE. whofe zeal for fcience, and for charity, is fo congenial with his. I alfo beg leave to mention, that fince this Publication, I have paid much attention to the fubjed which relates to chemical attraction (generally called affi nities) of bodies, and that I have finifh- ed a new Table, exhibiting fuch; this I fhall infert in the Work I have now finifhed, and fhall call it. Experimental Chemistry. It is finifhed chiefly after ,the doctrines of the new Theory. In this, I have procured myfclf the advan tage of having repeated molt of the in- terelling experiments, and have improv ed and added feveral new afcertained fads, and fome obfervations of my own, . which I have drawn from well eflablifh- ed fads, as far as I could do it from the prefent knowledge we polfefs of bodies examined