"Litmus" Quotes from Famous Books
 ... Rocella tinctorum fucus, a lichen found on the rocks of the Canary and Cape de Verde groups; it yields a rich purple. Litmus, largely used in chemistry, ...
— The Sailor's Word-Book • William Henry Smyth
... acids were used to erase, if moistened litmus-paper be applied to the writing, the litmus-paper will become slightly red if there is any acid remaining on the suspected document. If the suspected spots be treated with distilled water, or alcohol, as already ...
— Disputed Handwriting • Jerome B. Lavay
... is an important one, I will give the evidence. The secretion of many glands on thirty leaves, which had not been in any way excited, was tested with litmus paper; and the secretion of twenty-two of these leaves did not in the least affect the colour, whereas that of eight caused an exceedingly feeble and sometimes doubtful tinge of red. Two other old leaves, however, which appeared to have been inflected several times, ...
— Insectivorous Plants • Charles Darwin
... and infiltration of fat in organs, leading to feebleness of heart action. The method of securing and testing serum of patient was described (titration, a colorimetric method of measuring the percentage of substances in solution), and the test by litmus paper of normal or super-normal solution. In this test the ordinary healthy man shows normal 30 to 50: the scurvy patient ...
— Scott's Last Expedition Volume I • Captain R. F. Scott
... litmus paper," said Percy. "It is prepared by moistening specially prepared paper with a solution of a coloring matter called litmus, and the paper is then dried. This coloring matter has the property of turning blue in the presence of alkali and red in the presence of ...
— The Story of the Soil • Cyril G. Hopkins
... concentrated to form crystals. If you can not get pure silver, you may purify it by dissolving coin in nitric acid, filtering the solution and precipitating the silver in the form of a chloride by hydrochloric acid. Next wash the precipitate with hot water until the washings cease to redden litmus paper. Next mix the pure chloride of silver while yet moist with its own weight of pure crystallized carbonate of soda, place the mixture in a covered porcelain crucible and heat very gradually until the fusing point of silver is reached. The reduced silver will ...
— Scientific American, Vol.22, No. 1, January 1, 1870 • Various
... the blue glow of the Bunsen lamp, the room was in darkness. Now and again the student would take a glass rod, dip it for an instant into the boiling liquid, and, lifting it, would allow the liquid drop by drop to fall from the rod on to a strip of litmus paper. What he saw was evidently satisfactory, and presently he turned out the Bunsen lamp, walked to the window and opened it, and switched on an electric fan to aid the process ...
— The Man Who Knew • Edgar Wallace
... cheap experiment, the stranger then took Concho's breath away by reddening some litmus paper with the nitrate, and then completely knocked over the simple Mexican by restoring its color by dipping it in the ...
— The Story of a Mine • Bret Harte
... brown; tar or carbolic acid, green). (2) Density: The horse's urine may be 1.030 or 1.050, but it may greatly exceed this in diabetes and may sink to 1.007 in diuresis. (3) Chemical reaction, as ascertained by blue litmus or red test papers. The horse on vegetable diet has alkaline urine turning red test papers blue, while in the sucking colt and the horse fed on flesh or on his own tissue (in starvation or abstinence during disease) it is acid, ...
— Special Report on Diseases of the Horse • United States Department of Agriculture
... I believe Ahchimides invend that, in fact. An' yet, out of ten thousan' who use the sun-glass only a few can account 'ow tis done. 'Ow did you think that that's my invention, Mistoo Itchlin? Did you know that I am something of a chimist? I can tu'n litmus papeh 'ed by juz dipping ...
— Dr. Sevier • George W. Cable
... 20 different articles, including chemicals, test-tubes, adjustable ring-stand, litmus paper, filter paper, glass tubing, etc.; in fact, everything needed for the forty-one experiments. The Book of Instructions is fully illustrated, and measures ...
— How Two Boys Made Their Own Electrical Apparatus • Thomas M. (Thomas Matthew) St. John
... experiment; essay &c (attempt) 675; analysis &c (investigation) 461; screen; trial, tentative method, tatonnement. verification, probation, experimentum crucis [Lat.], proof, (demonstration) 478; criterion, diagnostic, test, probe, crucial test, acid test, litmus test. crucible, reagent, check, touchstone, pix^; assay, ordeal; ring; litmus paper, curcuma paper^, turmeric paper; test tube; analytical instruments &c 633. empiricism, rule of thumb. feeler; trial balloon, pilot balloon, ...
— Roget's Thesaurus of English Words and Phrases: Body • Roget
... cause destructive distillation, products containing much carbonate of ammonium are given off. The ammonia is easily detected by its smell of hartshorn and the blue colour produced on a piece of reddened litmus paper, the latter being a general test to distinguish alkalis, like ammonia, soda, and potash, from acids. No vegetable fibres will, under any circumstances, give off ammonia. It may be asked, "But what ...
— The Chemistry of Hat Manufacturing - Lectures Delivered Before the Hat Manufacturers' Association • Watson Smith
... is needed for the growth of bacteria. As a general rule growth is most active in media which react slightly acid to phenolphthalein—that is, neutral or faintly alkaline to litmus. Mould growth, on the other hand, is most vigourous in media that are strongly ...
— The Elements of Bacteriological Technique • John William Henry Eyre
... acid, the frequent use of Vichy water, to which is added a little bicarbonate of potassium, about five grains to a drink, as a diuretic will prove of great service. If the urine is alkaline (and this you can tell by using a red litmus paper which will turn blue if it is alkaline) ten grain doses of benzoate of ammonium three (3) times ...
— Mother's Remedies - Over One Thousand Tried and Tested Remedies from Mothers - of the United States and Canada • T. J. Ritter |
