human
They are next wet back, staked, dried and staked again. They are then
gpt
colour is obtained, a coal tar colour is added for
human
and the drumming continued until the required shade is obtained. The excess liquor is now run off, and the materials lost in soaking are replaced by drumming further with egg yolk and salt for 15 minutes. This is known as
gpt
Blacks are obtained with logwood and iron. After re-egging, the skins are dried out and staked. They are