C—500 c.c. water plus 5 grams Ursol D
Table III
| A S.P. | B S.P. | C S.P. | D S.P. | |
|---|---|---|---|---|
| Salt-acid Tan | C. | C. | C. | C. |
| Australian Opossum | 51° | 51° | 53° | 56° |
| Chamois | ||||
| Mink | 59° | 59° | 61° | 62° |
A—500 c.c. water plus 5 grams ground nut-galls
B—300 c.c. water plus 2 grams pyrogallic acid
C—500 c.c. water plus 2 grams potassium bichromate
D—Water, after treating leather with rapeseed oil
Table IV
| A S.P. | B S.P. | C S.P. | D S.P. | |
|---|---|---|---|---|
| Salt-acid Tan | C. | C. | C. | C. |
| Australian Opossum | 49° | 49° | 55° | 50° |
| Chamois Tan | ||||
| Mink | 59° | 67° | 69° | 70° |
A—500 c.c. water plus 5 c.c. formaldehyde for 1 hour