2800.1 William Y-WORTH. Introitus apertus ad artem distillationis; or the whole art of distillation practically stated, and adorned with all the new modes of working now in use... To which is added, The true and genuine way of preparing powers by three noble menstruums, sc. A purified sal armoniack, the volatile salt of tartar, and sal panaristos... 8° London: for J. Taylor 1692 Ferguson British Library Wisconsin