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. 1857 Excerpt: ...it is boiled; but the casein, or curd of sour milk is like the white of an egg after it is boiled. This casein, or curd of milk, is coagulated by acids. When milk is sour the lactic acid of the sour milk, mixing with the casein, coagulates it; in consequence of which, it separates from the water, and becomes an ...
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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. 1857 Excerpt: ...it is boiled; but the casein, or curd of sour milk is like the white of an egg after it is boiled. This casein, or curd of milk, is coagulated by acids. When milk is sour the lactic acid of the sour milk, mixing with the casein, coagulates it; in consequence of which, it separates from the water, and becomes an insoluble mass; or, in other words, the milk curdles. " lectin.-Ml," (from the Latin word Lac, milk) is the acid of sour milk. Bv: it is found in several other substances also, as in the fermented jui: a of '.-eet-root, turnips, carrots, rice-water, tanning-bark, etc. 1187. Q. Why is vinegar sour? A. Because it contains acetic acid. Acetir, from the Saxon word (rcced, ) vinegar; whence, also, our word a: id; thpt is, like vinegar. 1188. Q If wine or beer be imperfectly corked, why does it rapidly turn sour? A. Because air gets into the liquor; and the oxygen of the air, combining with the alcohol of the liquor, produces acetic acid, (or vinegar.) CHAP. VII.--OILS 1189. Q. Of what is soap made? A. Of kelp (or the ashes of sea-weed dried and burnt in a pit) mixed with oil or fat. Yellow Soap is made of whale oil, soda, and resin. Soft Soap is made of oil and potash. Hard Soap, of oil and soda. 1190. Q. Why does soap, when laid on paint, destroy it? A. Because the soda or potash of which the soap is composed, destroys or neutralizes the oil in the paint, and sets the coloring matter free. 1191. Q. Why does soapy water "lather?" A. Because soap makes the water tenacious, and prevents its bubbles of air from bursting. "Lather" is only an accumulation of air bubbles. Any substance is said to be tenacious, which holds fast or retains another--thus the soapy water holds or retains the air-bubbles. 1192. Q. Why is it impossible to w...
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Add this copy of Peterson's Familiar Science Or, the Scientific to cart. $32.75, new condition, Sold by Paperbackshop rated 4.0 out of 5 stars, ships from Bensenville, IL, UNITED STATES, published 2019 by Hardpress Publishing.
Add this copy of Peterson's Familiar Science; Or, the Scientific to cart. $44.68, new condition, Sold by Booksplease rated 4.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2019 by Hardpress Publishing.
Add this copy of Peterson's Familiar Science: Or, The Scientific to cart. $70.21, new condition, Sold by Booksplease rated 4.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2015 by Arkose Press.
