The Harmsworth encyclopaedia

The Harmsworth encyclopaedia

4.11 - 1251 ratings - Source

If the mixture is intended to be free from iron, it will be necessary to pass it two or three times through a trough containing ... moulds, the thrower has become lesa of an artist than when the making of the forms was dependent on his manual skill. ... With an oven having a diameter of from 18 to 19 ft. the time required to fire it ranges from forty to fifty hours. ... Underglaze colours derive their colouring properties from the following:a€” Oxido of cobalt gives the many shades of blue, oxide ofanbsp;...

Title:The Harmsworth encyclopaedia
Author:George Sandeman
Publisher: - 1907*


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