. The big trees of California, their history and characteristics. Sequoia. [from old catalog]. â 'S*^? ?^ I f Professor H. W. Wiley, Chief of the Bureau, says: *'The material possesses none of the physical nor chemical properties of wood gums; it is optically inactive, non-cohesive and contains neither glucosides nor pentosans. The non-tan- nins are chiefly protocatechuic acid with smaller amounts of '^^0 catechol, gallic acid, etc. The tannin is largely a catechol tannin, although some gallo- tannic acid is present. The material is interesting, not on- ly in containing a large per- centage of
. The big trees of California, their history and characteristics. Sequoia. [from old catalog]. â 'S*^? ?^ I f Professor H. W. Wiley, Chief of the Bureau, says: *'The material possesses none of the physical nor chemical properties of wood gums; it is optically inactive, non-cohesive and contains neither glucosides nor pentosans. The non-tan- nins are chiefly protocatechuic acid with smaller amounts of '^^0 catechol, gallic acid, etc. The tannin is largely a catechol tannin, although some gallo- tannic acid is present. The material is interesting, not on- ly in containing a large per- centage of tannin, but also be-^' >^ cause it contains so little of the insoluble decomposition â71â M vyA A if -I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Clark, Galen, 1814- [from old catalog]. Yosemite Valley, Cal. , G Clark [Redondo, Cal. , Press o Reflex publishing co. ]
Size: 2556px × 978px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcontributorthe, bookdecade1900, bookyear1907
