1. Cardiac glycosides Part 1;Greeff,1981
2. Hall Jackson and the purple foxglove;Estes,1979
3. An inquiry into the nature, causes, and cure of hydrothorax;Maclean,1810
4. DIGITALIS DOSAGE
5. An essay on the medical properties of the Digitalis purpurea or foxglove;Ferriar,1799