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The writer convinced that the gall what there left after the insect has eaten a hole the surface, just the same as the gall without such a hole course, lighter but as with the man who bought a pound Swiss cheese and complained the large holes and was told the grocer that after had eaten the cheese should return the holes and the grocer would return full value for whatever the holes might weigh, the lightness perforated tails compensated for the greater number the pound what there the perforated gall as good as an equal weight one that not perforated.

When a gall gathered and dried before the insect has matured the latter dies and the gall remains imperforated. Round, hard, more or less nodulated, in diameter Irregularly lobed, academic research writing service hollow, thinwalled, slightly downy or Round, spongy, orange or yellowish-brown, or more in M.

Galls, Nut-galls.

Excrescences Quercus lusitanica Cvpulifera caused the punctures made the female Cynips Galla tinctoria, while depositing her eggs.

The Levant.

The illustrations show galls whole and in section, with and without holes, all natural size. Galls are globular, about in diameter, nodulated side opposite point attachment, otherwise smooth, heavy, hard, often with a perforation extending buy college papers online from the central cavity externally dark olive-green, or bluish-browuish-greea, best essay writing service canada or blackish-green internally yellowish-gray, darker towards center fracture brittle and granular the cavity in center has a hard wall and occasionally contains a dead grub or imperfectly developed insect, or incase the insect haa escaped, the debris caused odor none and taste very astringent.

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tannin and gallic acid, etc. Astringent. Dose. gram. Mainly used for making tannic and gallic acids. Dark-colored and heavy nut-galls are usually good, and light-colored, light and spongy galls are usually inferior. This difference does not appear dependent whether the gall perforated or not, and there no difference between galls with holes and without holes, other things being eqnal. Aleppo or Syrian galls are best, and these are For the manufacture tannic and gallic acids are also employed.

For instance, Calneae galls which in color both are occasionally closed and pednncled galls from Que reus lobata, are large, in diameter, orange or yellowish-brown, spongy and very astringent.

Galls from sumach and other plants are also employed in manufacture and in tanning, but only the Aleppo Syrian oak-galls described above are special interest the pharmacist. VEGETABLE DRUGS WITHOUT CELLULAR STRUCTURE. A small portion, the merest shred, a cellular drug pat a microscope slide and cleared with a drop liquor potassae, covered with a cover-glass, then examined under the microscope, will show cellular structure if does not show this, a drug showing no cellular structure, and may write my personal statement either an animal or a vegetable drug. If animal origin, will probably cause a strong or disagreeable odor when burned a hot stove lid, or in a flame, while if a vegetable drug, the products combustion are odorless, or at least not the peculiar character which distinguishes burning animal matter the test being, in fact, the same that applied every housewife determine whether the cloth she has bought, or which she has a sample, really woollen or not. The test not always applicable, however, because a few animal substances may produce little or no odor burning, while the reverse true in regard a few vegetable drugs. However, the test will almost always enable say whether the non-cellular drug under examination a vegetable drug or not, the microscope having determined already creative writing help that non-cellular. The drugs this general class may divided into two subdivisions, according their appearance under the microscope, for some them show regular and organic structure, although not cell structure This group comprises the starch grains as these are only part the cell-contents, and as cellular structure means composed cells, evident that starches have no cellular structure, although The nature starch and its relation the plant economy supposed have been studied in the lessons botany, but a few words recapitulation will not amiss. Starch plant-food which stored for future use.

 

 

 

 

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