Identifier: pdiaofaencyclo00loudrich (find matches)
Title: An encyclopædia of agriculture : comprising the theory and practice of the valuation, transfer, laying out, improvement, and management of landed property, and of the cultivation and economy of the animal and vegetable productions of agriculture
Year: 1871 (1870s)
Authors: Loudon, J. C. (John Claudius), 1783-1843
Subjects: Agriculture -- Dictionaries
Publisher: London : Longmans, Green
Contributing Library: University of California Libraries
Digitizing Sponsor: MSN

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nnually at Manchester is equal to about 25 inches ofrain. If to this we add five inches for the dew, with Dalton, it will make the annualevaporation 30 inches. Now, if we consider the situation of England, and the greaterquantity of vapour raised from water, it will not surely be considered as too great anallowance, if we estimate the mean annual evaporation over the whole surface of theglobe at 35 inches. 2356. A cloud is a mass of vapour, more or less opaque, formed and sustained atconsiderable height in the atmosphere, probably by the joint agencies of heat and A a 3 SCIENCE OF AGRICULTURE Pari II electricity. The firsl successful attempt to arrange the diversified forms of clouds, undera few general modifications! was made by Luke Howard, Esq. We shall give here abrief account of his ingenious classification. 2357. The simple modification! are thus named and defined: — 1. Cirrus, parallel,rlcxuous, or diverging fibres, extensible in any or in all directions (jig. 207. a.J; 207 8
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2. Cumulus, convex or conical heaps, increasing upwards from a horizontal base (6) ; 3. Stratus, a widely-extended, continuous, horizontal sheet, increasing from below (c).2358. 7V intermediate modifications which require to be noticed are, 4. Cirro-cumulus, small, well defined, roundish masses, in close horizontal arrangement (d); 5. Cirro-stratus, horizontal, or slightly inclined masses, attenuated towards a part or the whole oftheir circumference, bent downward or undulated, separate, or in groups consisting ofsmall clouds having these characters e). _:i5P. The compound modifications are, 6. Cumulo-stratus, or twain cloud ; the cirro-stratus blended with the cumulus, and either appearing intermixed with the heaps of thelatter, or superadding a wide-spread structure to its base ( f) ; 7. Cumulo-cirro-stratus,in Nimbus ; the rain-cloud, a cloud or system of clouds from which rain is falling. Itis a horizontal sheet, above which the cirrus spreads, while the cumulus enters it laterall

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