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Credit
Specification of George Edward Dering : preserving or preventing decomposition in vegetable and animal substances, &c. Public Domain Mark. Source: Wellcome Collection.
Patent for preserving timber and fabrics using sulphate of zinc and chloride of zinc with hydrochloric acid added to galvanic batteries which can also be used for "disinfecting and deodorizing fecal and other matters... to render them serviceable as manure"
| Location | Status | Access | |
|---|---|---|---|
Closed stores Pat. vol. 49 |
| Location | Access | ||
|---|---|---|---|
Closed stores Pat. vol. 49:23 |