The Chemical Trade Journal

The Chemical Trade Journal

4.11 - 1251 ratings - Source

In the days of Paracelsus a€œcobaltaquot; was the name given to a goblin said to haunt the mines; and prior to the discovery of ... where with a circular saw it is cut into pieces about 2 ft. long; these pieces are conveyed by rollers to an adjoining ... These three processes are done with great rapidity and very little manual labour.

Title:The Chemical Trade Journal
Publisher: - 1889


You Must CONTINUE and create a free account to access unlimited downloads & streaming