- Wagner says the standard ton weight of tanbark in S.F. market is 2400 lbs, or 2300 for bark of previous season. In the woods it is 200 pounds more to compensate for shrinkage due to loss of water from green bark. There is also loss of "ross" in handling and loss of sticke [?] in transit -- this often amounts to 100 or 150 pounds.
The wood is used by here for sled runners, wagon pieces, etc. We get it out before the sun cracks it, saw it up, and soak the sap out of it. We have some good planks. It will not do where great strength is required. It is not as good as Eastern
June 18, 1903.
Oak, but would do for interior finishing. It checks very quickly lying in the sun and they say rots in two years. That it rots so quickly leads me to believe it has tannin in it.
Canaigre [?] root will not do for tanning. It has too much starch in it. I have used it in certain places -- for swelling hides it is good -- but I do not use it beyond that.
Chlorides will not do in tanning. They make beautifully clear liquers but the hides would be ruined [?]. A Chicago chemist gave me this advice. Best advice I ever had. But a chemist does not make a good tanner. -- All of which says Wagner.