| Either bichromate of potash or bichromate of soda can be used as a depolarizer. |
| An approximation to the quantity can be obtained from the spread between the acetin and bichromate results on such distillates. |
| A solution of pigment, gum arabic and potassium bichromate is coated on paper and dried. |
| To sensitize the plates I employ a bath of bichromate of potash of six per cent, and again dry them. |
| You can change the color of the image by toning or applying gum bichromate emulsions to a finished platinum print. |
| In one case, for example, decinormal solutions of potassium carbonate and potassium bichromate were used. |
