Alcali vindicatum, or, The acid opiniator [sic] not guilty of truth : being an impartial enquiry into the fallacious reasons and erroneous philosophy of a late physico-medical essay touching alcali & acid : especially as they relate to the cause or cure of the small pox, scurvy, gout, rheumatism and consumption : to which is added a discourse of the nature and usefulness of an hypothesis in relation to the practice of physick : with a description of a most excellent medicine call'd tinctura sanitatis, of great use in all diseases of the head and stomack especially /