Practical Observations on the British Grasses: Especially Such as Are Best Adapted to the Laying Down or Improving of Meadows and Pastures: To Which Is Added, an Enumeration of the British Grasses. the Third Edition, with Additions. by William Curtis
Practical Observations on the British Grasses: Especially Such as Are Best Adapted to the Laying Down or Improving of Meadows and Pastures: To Which Is Added, an Enumeration of the British Grasses. the Third Edition, with Additions. by William Curtis,
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1798 Excerpt: ...unctuous than the former, and adheres to the tongue; its hardnefs generally much greater. In water it falls to pieces more ilowly, and often into fquare pieces: pieces: it alfo more flowly moulders by ex pofure to the air and moifture, if of a loofe confiftence: it hardens when heated, and forms an imperfeet brick. It ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1798 Excerpt: ...unctuous than the former, and adheres to the tongue; its hardnefs generally much greater. In water it falls to pieces more ilowly, and often into fquare pieces: pieces: it alfo more flowly moulders by ex pofure to the air and moifture, if of a loofe confiftence: it hardens when heated, and forms an imperfeet brick. It effervefces with ipirit of nitre or common fait, but frequently refufes to do fo with vinegar. When dried and projected into fpirit of nitre in a Florence flaik, with the attentions abovementioned, it is found to lofe from 8 to ю per cwt. of its weight/ The undiifolved part, well waihed, will when duly heated harden into a brick. Silicious, or Sandy Marls, are thoib whofe clayey part contains an excefs of fand: for, if treated with acids in the manner abovementioned, the refiduum, or clayey part, will be found to contain above 75 cwt. of fand; confequently chalk and fand are the predominant ingredients. The colour of this marl is browniih grey, or lead coloured: generally friable and flakey, . but fometimes forms very hard lumps. Itf does not readily fall to pieces in water. It chips and moulders by expoiure to the air and moifture, but flowly. It effervefces'with acidsj but the refiduum after folution, will not form a brick. D 2 Lime 1 Limeone Gravel. This is a marl mixed with large lumps of limeftone. The. marl may be either calcareous or argillaceous; but moil commonly the former. The fandy part is alfo commonly calcareous. Gypfum is a compound of calcareous earth and vitriolic acid: it forms a diftinel fpecies of the calcareous genus offoffils: of which fpecies there are fix families. The general chara&er of this fpecies are, 1. Solubility in. about 500 times its weight of water, in the temperature of 6o? 2. P...
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New in New jacket. Practical Observations on the British Grasses: Especially Such as Are Best Adapted to the Laying Down or Improving of Meadows and Pastures: To Which I (Hardback or Cased Book)
All Editions of Practical Observations on the British Grasses: Especially Such as Are Best Adapted to the Laying Down or Improving of Meadows and Pastures: To Which Is Added, an Enumeration of the British Grasses. the Third Edition, with Additions. by William Curtis,