A dialogue between alkali and acid : containing divers philosophical and medicinal considerations, wherein a late pretended new hypothesis, asserting alkali the cause, and acid the cure of all diseases; is proved groundless and dangerous. Being a specimen of the immodest self-applause, shameful contempt, and abuse of all physicians, gross mistakes and great ignorance of the pretender John Colbatch. By Thomas Emes, Chirurgo-Medicus.