Memoirs Of The Torrey Botanical Club Volume 14-15

Paperback | October 12, 2012

byTorrey Botanical Club

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ... Economic Possibilities The possible economic importance of the marine algae has been emphasized of late by the investigations that have been carried on by the U. S. Department of Agriculture as to their use as a source of "potash" for agricultural fertilizers. The kelps of the Pacific coast of the United States in particular are the subject of several taxonomic, biologic, and chemical papers published in a recent report on "Fertilizer Resources of the United States." In the letter of transmittal accompanying this report, Hon. James Wilson, Secretary of Agriculture, remarks: "But in the giant kelps of the Pacific coast there is a potential source of potash salts which can certainly yield annually some three or four times the amount now used in this country, and under the best management might even rival the famous Stassfurt deposits. It is regarded as a very conservative estimate to put the annual yield of potassium chloride from the Pacific kelps at upward of 1,000,000 tons, worth at present prices nearly §40,000,ooo." To a similar statement, Milton Whitney, Chief of the Bureau of Soils, adds: "Moreover, it should be perfectly feasible to cover most, if not the entire, cost of production of this vast 'crop' by the iodine and other by-products produced simultaneously." Dr. J. W. Turrentine (loc. cit. 230, 231) quotes Batch's chemical analysis of the bulb of Pelagophycus Porra of the southern Californian coast, showing that 48 per cent, of its dry weight consists of potassium chloride. Dr. F. K. Cameron (loc. cit. 42) states that Nereocystis Luetkeana, which is the principal kelp of the Puget Sound region and occurs in abundance also farther south, has an average content of potassium chloride amounting to 30-35 per cent, of its dry...

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 edition. Excerpt: ... Economic Possibilities The possible economic importance of the marine algae has been emphasized of late by the...

Format:PaperbackDimensions:150 pages, 9.69 × 7.44 × 0.32 inPublished:October 12, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:021702114X

ISBN - 13:9780217021142

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