Smithsonian Miscellaneous Collections, Volume 8

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Smithsonian Institution, 1869 - Science

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Page 357 - Emmons, Ebenezer. Agriculture of New York; comprising an account of the classification, composition and distribution of the soils and rocks and the natural waters of the different geological formations, together with a condensed view of the meteorology and agricultural productions of the State.
Page 297 - ... of the back and one on each flank, extending from the head to the posterior extremity, anastomosing more or less with each other, and having smaller spots of the same color between them; inferior margin white or yellowish; foot whitish. Mouth surrounded with a circular row of papillae. Body elongated, subcylindrical, flattened towards its posterior extremity, which is obtuse; eye-peduncles...
Page 65 - ... on the posterior part, and its edges free throughout the whole circumference. Upper surface of the body marked with longitudinal lines or shallow furrows, darker than the general surface, sometimes black, anastomosing with each other, and forming a sort of network ; between the reticulated lines are narrow, irregular oblong plates, or smooth, flattened tubercles, giving the surface the appearance of a mosaic work, with lines of dark cement; reticulations less distinct on the sides, and disappearing...
Page 104 - ... and Troostiana. In this species the inferior tooth is transverse, and in some specimens broader than the superior one, but has a somewhat pointed apex, — both are very nearly equally deeply seated, but so far apart as to allow a view between them into the aperture, leaving, as Mr. Lea expresses it, " to appearance three nearly square apertures.
Page 102 - ... largest, and so partially conceals the lower margin of the superior one as to obstruct the view into the aperture, and give no appearance of separation 'by a remarkable sinus.
Page 265 - Shell ovate, pale green, yellowish-green, amber-colored, or cinereous, very thin and fragile, pellucid, sometimes roseate at apex; periostraca shining, minutely wrinkled or striated; whorls rather more than three, the last very large and much expanded and more or less oblique; spire very small, not prominent nor pointed; suture distinct, impressed; aperture oval, large, and expanded, more or less oblique; columellar margin with a slight testaceous glazing; columella thin, sharp, narrow; peristome...
Page 233 - ... stones, sticks, etc., in the open fields ; and many at the margins of brooks, pools, and ponds, under chips, or crawling up the stems of plants, and seem to be incapable of existing unless abundantly supplied with moisture, seeming to be aquatic rather than terrestrial in their habits. They feed on decaying vegetable matter, keeping themselves in the shade, and adhering closely to the objects on which they rest when in repose. In the winter they bury themselves under the leaves or in the earth.
Page 113 - ... leporina, — is less globose than the former, and more sparingly hirsute. It differs widely from both in the character of the umbilicus, — the aperture is much like that of pustula, but more narrow than that of leporina. The inferior tooth on the peristome is more developed laterally than in //. pustula, — indeed it has a somewhat bifid appearance, in which respect it is more allied to //. leporina.
Page 14 - The accounts of their virtues, copied from one author to another, on the authority of names, show how easily error is perpetuated, and how difficult it is to eradicate from the public mind a false opinion which has once obtained a footing. A full relation of all the absurdities which gained credence, would form a curious page in the history of credulity and superstition. The more general diffusion of knowledge at the present day has dispelled these ideas in a great degree ; but some relics of them...
Page 301 - Rafinesque's genus Philomycus, and he accordingly described it as such. Having an opportunity since that time of examining several of them, he noticed, on throwing some of them into alcohol for preservation, that the contraction caused by the liquor revealed and detached the mantle from its adhesion. Its characters, therefore, correspond with those of the present genus.

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