The Sheet metal worker's instructor : [for zinc, sheet iron, copper, and tin plate workers, and others; ] containing a selection of geometrical problems, also practical and simple rules for describing the various patterns required [in the different branches of the above trades] /

Mode of access: Internet.

An analysis of a mineral substance from North America, containing a metal hitherto unknown. From the Philosophical transactions.

Binder's title: Discovery of columbium.

Locking forms for the job press, containing useful information regarding the imposition of job forms; wooden and metal furniture, quoins, bearers, foundry guards, etc.,

Mode of access: Internet.