Occasional Papers


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OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 208: Terrestrial Plant Test: Seedling Emergence and Seedling Growth Test


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This Test Guideline is designed to assess effects on seedling emergence and early growth of higher plants following exposure to the test substance applied to the soil surface or into the soil. Seeds are placed in contact with soil treated with the ...




Home Dyeing with Natural Dyes


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The publication reports the results of tests on about 65 natural dye materials when used for dyeing cotton and wool cloth. Most of the dyes studied are of vegetable origin. In fact the terms natural and vegetable dyes are often used interchangeably though a few, such as cochineal, are of animal origin and iron buff and some others are developed from mineral pigments.










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Duroc-Jersey Swine Record


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