Part III: Preface; Observations on the state of population in Manchester and other adjacent pages; On the small-pox and measles; On the different quantities of rain, which fall at different heights over the same spot of ground; On the solution of human calculi by fixed air; On the nature and composition of urinary calculi; On the effects of foxed air on the colours and vegetation of plants; On the action of different manures; On different absorbents; On the internal regulation of hospitals; Miscellaneous observations, cases and inquiries; Part IV: Preface; On a new and cheap method of preparing pot-ash; On the fatal effects of pickles impregnated with copper; Speculations on the perceptive power of vegetables; Facts and queries relative to attraction and repulsion; Narrative of the sufferings of a collier; A physical inquiry into the powers and operations of medicines; On the solvent powers of camphor; Medical cautions and remarks; On the medicinal uses of cod liver oil; On the nature, cause, and cure of the rabies canina; Miscellaneous facts and observations; Miscellaneous practical observations; An account of an earthquake; On the silk cotton of Sumatra; On the acid of tar; On the construction and polity of prisons; Remarks relative to the improvement of the Manchester Infirmary; Index.