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Image from page 846 of “A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice.” (1864)
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Identifier: supplementtoures00hunt
Title: A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice.
Year: 1864 (1860s)
Authors: Hunt, Robert, 1807-1877
Subjects:
Publisher: New York : Appleton and company
Contributing Library: University of California Libraries
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orrectly sizing thev^in stuff, neither is there one demanding the exercise of a morec irrect judgment. If the particles of ore be reduced below theirnatural size, a source of loss is immediately created, whilst, if theyare not brought within the limit of their size, a portion of waste will probably adhere tocacli atom, forming a serious difference in the aggregate quantity of castaways, althouglisucli waste may afford ))ut a low average percentage. The holes in the sieves or tronmielssliould therefore be proportioned to the nature of the ore, but such apparatus should also beintroduced wherever necessary. To the crushing-mill, trommels art; essential, whilst it willbe found highly advantageous to cniploy them for the purpose of dividing (he stnlf wher-ever it may become intermixed Tl)e simplest form of sizing is jjerliaps hy the hand rid-dle, Jig. 474, which is formed of a circular hoop of oak, 2 of an inch thick and six inchesd-ep. Its diameter ranges from eigliteon to twenty inches.
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8U ORES, DRESSING OF. The bottom is made of a meshwork pf copper or iron wire. The weight of an iron wireriddle is about seven pounds, and its cost 4s. 6d. I
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Image from page 9 of “The chemist and druggist [electronic resource]” (1859)
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Identifier: b19974760M6534
Title: The chemist and druggist [electronic resource]
Year: 1859 (1850s)
Authors: UBM
Subjects: Pharmacy Drug Industry
Publisher: London : Morgan Brothers UBM
Contributing Library: Wellcome Library
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tf placebo for a further 18 months. Theprimary outcome measure was thenumber of patients at year two main-taining at least 80 per cent of theirweight loss from the first six months. Of the patients treated with place-bo, only 16 per cent maintained 80 percent or more of their original weightloss. Half of the placebo group and 42per cent of the sibutramine groupdropped out of the study Sibutramine is a tertiary amine, orig-inally developed as an antidepressant.Its weight-loss-inducing properties areexerted through a mechanism involv-ing the inhibition of neuronal reup-take of norepinephrine and serotoninat the receptor sites that affect foodintake. It also prevents the decline inenergy expenditure during weightloss. The trial, which was published inThe Lancet, showed that almost allpatients who persist with its manage-ment scheme achieved a 5 per centweight loss with sibutramine. Overhalf lost more than 10 percent of theirweight within six months. Caffeine linkedto spontaneousabortions
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Pregnant women who drink five cupsof strong coffee daily more than dou-ble their risk of spontaneous abortion. Women who drink at least onestrong cup daily are more likely tohave a spontaneous abortion thanthose who drink less coffee, accordingto a study in the New England Journalof Medicine. Smokers have a 50 percent higher risk than non-smokers, butcaffeine does not affect the abortionrate among smokers. Midwives helped with the the studywhich compared 562 women whohad suffered a spontaneous abortionat 6-12 weeks of gestation with 953women without an abortion whowere matched to their week of gesta-tion. Questionnaires took account ofcoffee, tea, cocoa, soft drinks and caf-feine-containing medication. Mean intake of caffeine during preg-nancy was similar in both groups.There were no significant differencesbetween the groups in terms of educa-tion, body mass index, shift work orthe use of vitamin supplements. Researchers suggest reducing caffeineintake in pregnancy may be prudent. IN
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Image from page 214 of “Farm stock; a practical treatise on horses, cattle, sheep and swine, including their breeding, feeding, care and management in health and disease” (1909)
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Identifier: farmstockpractic00burk
Title: Farm stock; a practical treatise on horses, cattle, sheep and swine, including their breeding, feeding, care and management in health and disease
Year: 1909 (1900s)
Authors: Burkett, Charles William, 1873-
Subjects: Livestock
Publisher: New York, O. Judd company
Contributing Library: The Library of Congress
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best guideto follow. They will commonly eat 17 or 18 poundsof corn per 1,000 pounds live weight, or about thesame amount as in winter. If fed a full grain ration, about one-half as muchpasture area will be required as on grass alone.Further, the question whether such a supplementas linseed-oil meal or cottonseed meal can be addedprofitably to the corn fed, must be answered con-ditionally with reference to the character of thepasture crop. With any of the clovers or otherlegumes the need of a nitrogenous supplement isgenerally doubtful, while with bluegrass, or stillmore markedly, with timothy, orchard grass ornative prairie grasses, such feeds are of distinctvalue. 200 FARM STOCK BEEF CATTLE IN AUTUMN The critical time with beef cattle is the periodwhen grass fails and they are not yet taken intowinter quarters. The reference is, of course, tocattle that are to be finished some time during thewinter. To meet the emergency of a dry summer,the pasture provided should be in excess of the
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A HOME-MADE DIPPING TANK This dipping tank is always ready for use. An occasionaldipping wards off disease, and plays havoc with lice andmange. needs of the stock. Such pasture, though in ex-cess, will not be wasted. What is not eaten in thefall will so protect the plants that early growthwill follow in the spring, and this will probablymore than offset any loss from uneaten grass. Buteven the most careful forethought will not pre-vent a shortage at such a time in a very dry sea-son. THE BUSINESS OF BEEF MAKING 201 Supplementary Food—When pastures are short,supplementary food of some kind must be fed.If no increase was made during this period ofshortage, all the food eaten would be lost in thesense that no direct profit would be made from it.Wise forethought, then, will provide such food.The form in which it is most commonly furnishedis that of corn in the stalk, and in some areas sor-ghum. It is sometimes furnished in northernareas in the form of rape. Mien thus furnished,the catt
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