Experiments and observations on the cortex salicis latifoliae, or broad-leafed willow bark; illustrated by a coloured plate. Interspersed with general observations and remarks on the different species of the cinchona, &c. General history and progressive introduction of the salix latifolia; with a variety of experiments, tending to elucidate its properties. Illustrated by cases demonstrating its superior efficacy above the cinchonae in various diseases, more particularly that branch of the healin