This section is from the book "Materia Medica And Therapeutics Inorganic Substances", by Charles D. F. Phillips. Also available from Amazon: Materia medica and therapeutics.
The solid stick may be applied, for instance, to the interior of a hydrocele-sac after evacuating the contents, but an injection through a trocar is more under control: the object is to excite sufficient inflammation to induce adhesion (this is now better effected by iodine).
As an injection for hydrocele, 2 to 8 parts of sulphate in 200 to 250 of water have been used with success. Dr. Pereira (Oporto) states that twenty-one out of twenty-five cases were cured with this treatment (Medical Times, i., 1861).