The Story of Drugs: A Popular Exposition of Their Origin, Preparation and Commercial ImportanceCentury Company, 1922 - 358 էջ |
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The Story of Drugs: A Popular Exposition of Their Origin, Preparation and ... Henry C. Fuller Դիտել հնարավոր չէ - 2015 |
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Էջ 255 - Sometimes 25 per cent or more of them are found to be infected. In malarious localities the anopheline mosquitoes bite the healthy new-born children and infect many of them. Such children if not thoroughly treated may remain infected for years. They may become anemic and possess enlarged spleens, and of course may spread the infection to others. In malarious localities almost every child has been found to contain the parasites of malaria or to possess an enlarged spleen. In such a locality, therefore,...
Էջ 234 - The committee is of the opinion that the total number of addicts in this country probably exceeds one million at the present time," and further says that "the range of ages of addicts was reported as twelve to seventy-five years.
Էջ 234 - ... per cent of the population. On this basis there would be 1,908,000 addicts in the United States. Information in the hands of the committee indicates that drug addiction is less prevalent in rural communities than in cities or in congested centers. It would, therefore, be unfair to estimate the number of addicts in the entire country on the basis of the figures obtained for New York City. Furthermore, it is the opinion of the committee that an estimate based on the number of addicts in a small...
Էջ 146 - ... for rheumatism ; lobelia for coughs and colds ; wild sage tea, golden-seal, flowering dogwood, and prickly-ash berries for fevers; elder, wild cherry, and sumac for colds and quinsies; wild ginger, ginseng, and euphorbia for digestive disorders; inhalations of penny-royal for headache; sassafras or violet leaves for wounds and felons; and the roots of sassafras and sarsaparilla for "cooling and purifying the blood.
Էջ 254 - The parasite now undergoes certain changes in the mosquito's stomach. It passes through the stomach wall and finally affixes itself to its outer surface. Here it grows very considerably and, after a week under favorable conditions, produces a large number of spores. These spores, thus entering the general body cavity of the mosquito, find their way in.to the salivary glands. These glands secrete the irritating fluid injected under the human skin when the mosquito begins to feed. Thus, when one of...
Էջ 234 - ... received to the questionnaires sent out. With respect to this phase of the subject, the committee finds that addicts may be divided into two classes, namely, the class composed principally of addicts of the underworld and the class which is made up almost entirely of addicts in good social standing. The addict of the underworld, in a large majority of cases, acquires the habit of using these drugs through his or her associates. This is probably due to the fact that addicts of this class make...
Էջ 133 - If the preparation contains alcohol, it must be sufficiently medicated to prevent its use as an intoxicating beverage, and in addition to this requirement, the proportion of alcohol present must not be greater than is properly necessary to hold in solution in permanently active condition the essential constituents of the preparation, and to protect the preparation against freezing, fermentation, or other deleterious change.
Էջ 253 - It would appear from what we know of the life history and habits of the common house fly that it is perfectly feasible for cities and towns to reduce the numbers of these annoying and dangerous insects so greatly as to render them of comparatively slight account.
Էջ 260 - ... individual and community efforts to destroy rats will give satisfactory and lasting results. The program may be regarded by many as too expensive. Will it be too costly ? What do rats cost now ? If half the money now spent in feeding and fighting rats could be expended in wisely planned and wellexecuted cooperative efforts for rat repression, it would be possible within a few years nearly to rid the country of its worst animal pest, to reduce losses from its depredations by at least 90 per cent,...
Էջ 106 - The production of drugs of high quality requires skilled management, experience in special methods of plant culture, acquaintance with trade requirements, and a knowledge of the influence of time of collection and manner of preparation on the constituents of the drug which determine its value. Small quantities of drugs produced without regard to these conditions are apt to be poor in quality and so unattractive to dealers and manufacturers that the products will not be salable at a price sufficient...