Specification of William Clark : desiccating and preserving matters from decay.

Specification of William Glass : obtaining a deodorizing and disinfecting material.

Specification of William Hibbert : respirator.

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Zinc chloride

Works from the collections

Specification of William Clark : desiccating and preserving matters from decay.

Specification of William Glass : obtaining a deodorizing and disinfecting material.

Specification of William Hibbert : respirator.

Zinc chloride

Works from the collections

Specification of William Clark : desiccating and preserving matters from decay.

Specification of William Glass : obtaining a deodorizing and disinfecting material.

Specification of William Hibbert : respirator.

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