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Jepson Field Book volume 17 page 22 | University and Jepson Herbaria Archives, University of California, Berkeley

 
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Jepson Field Book volume 17 page 22
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Benicia [May 5, 1907]  Came to Benicia to interview Herbert Kullman of the Kullman-Salz Tanning Co. He says: The product of the California factories in heavy leather in 1906 had a value of _5,000,000.00. The value has equaled this for several years. On account of the increase in price of leather the amount does not represent so many sides as in previous years. I have never noticed adulteration. Saw Chesnut-Oak (Chinquapin) about Sherwood where there are fine trees but not enough of it to serve as an adulterant extensively. I made inquiries about it because I thought it might give color to the leather. Live Oak (Quercus agrifolia) has been sent us  ::::::::: [Benicia] May 5, 1907  by a man from Santa Barbara who thinks he has enough to make it pay. I don't know anything about its value. Black Oak (Quercus Kelloggii) is undesirable. It blackens the leather. Quebracho is our chief source of supply (supplementary supply). About 25 percent of our leather is tanned with it. Germany makes large use of it; 75% of her tanning. So does England. It comes to us in dry extract, which is not so desirable as liquid extract which they use on the Atlantic Coast. It comes to New York and vicinity in the log. They use the whole log except the bark. Quebracho is of the Argentine. No
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