Sikes Hydrometer 1870 In Wooden Case With Book

The purpose of a hydrometer is to determine the specific gravity of a liquid. From this it is often possible to determine the composition or strength of the liquid. The Sikes hydrometer was, for very many years, the standard means of determining the alcohol content of spirits and hence the duty payable.

This lot comes with a book by Bartholomew Sikes explaining the use of the hydrometer.