The preparation of nitre (saltpetre) hub-cap more than any of their

more than any of their previous models

Geel Koper

from the Royal Society

Interior view of Bridewell Hall

Captain John Valentine Carden began experimenting with light car design in 1913

The preparation of nitre (saltpetre) hub-cap more than any of theirThis plate forms part of Johann Rudolf Glauber's treatise on 'The Prosperity of Germany', and illustrates various stages in 'the Preparation of Salt petre' (nitre). The two images at the top show 'the manner of Boiling Salt petre, and by what means a Lixivium is to be made out of a Nitrous Earth', according to the methods of another German chemist, Lazarus Ercker. The lower image shows the preparation of the 'Lixivium' of saltpetre from horse dung or