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Jepson Field Book volume 10 page 72 | University and Jepson Herbaria Archives, University of California, Berkeley

Jepson Field Book volume 10 page 72
Briceland  - Wagner says that the largest and best tannings establishments in California were in 1857 at Santa Cruz. He does not remember exactly about the number of cords of tanbark used but he figures that about 12,000 cords of bark were used at Santa Cruz. - Mr. Fearrein [?] says that a quarter-section yields on an average 350 cords of bark, hereabouts. He is the Foreman in the woods. - The oak extract people would like to make a dry extract but it isn't possible to do it in any commercially profitable way. The extract as turned out here at Briceland contains about 15% water while ::::::::: June 16, 1903.  Quebracho extract which is dry contains 22%, the difference being that the latter has the power to crystallize when it cools. - Vine Maple leaves on top of tree always in pairs -- 2 leaves from a bud. The branchlets grow little each year -- in one case a branchlet had grown 4 1/2 in. in length in 15 years. The foliage is thin. - Garry Oak for posts, split off sap & they last 15 or 20 years, says a man on horseb. whom we stopped and quizzed. Also use Black Oak. Only use the Oaks when they can't get Redwood. Also use Red Fir, the lower branches which are very pitchy and are a long time rotting but mustn't get 'em too high up. Only the lower. The main trunk rots easily. The
University and Jepson Herbaria Archives, University of California, Berkeley
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