The Sylva Americana: Or, A Description of the Forest Trees Indigenous to the United States, Practically and Botanically Considered

Cover
W. Hyde & Company, 1832 - 408 Seiten
 

Andere Ausgaben - Alle anzeigen

Häufige Begriffe und Wortgruppen

Beliebte Passagen

Seite 6 - Men seldom plant trees till they begin to be wise, that is, till they grow old, and find by experience the prudence and necessity of it.
Seite 347 - ... trees are desired; then, with the budding-knife, make a horizontal cut across the rind, quite through to the firm wood ; from the middle of this transverse cut make a slit downward, perpendicularly, an inch or more long, going also quite through to the wood. This done, proceed with all expedition to take off a bud ; holding the cutting...
Seite 328 - ... of water and of soil, and this may be easily done by pouring in water till it is half full, and then adding the soil till the fluid rises to the mouth ; the difference between the weight of the soil and that of the water will give the result.
Seite 233 - ... of the summits of those that are felled for timber, and of limbs broken off by the ice which sometimes overloads the leaves. It is worthy of remark that the branches of resinous trees consist almost wholly of wood, of which the organization is even more perfect than in the body of the tree.
Seite 123 - To form the canoe they are stitched together with fibrous roots of the white spruce, about the size of a quill, which are deprived of the bark, split, and suppled in water. The seams are coated with resin of the balm of Gilead. Great use is made of these canoes by the...
Seite 327 - In supplying organic matter, a temporary food only is provided for plants, which is in all cases exhausted by means of a certain number of crops ; but when a soil is rendered of the best possible constitution and texture, with regard to its earthy parts, its fertility may be considered as permanently established. It becomes capable of attracting a very large portion of vegetable nourishment from the atmosphere, and of producing its crops with comparatively little labor and expense.
Seite 346 - INOCULATION, or BUDDING.—" The object in budding is the same as in grafting, and depends on the same principle ; all the difference between a bud and a scion being that a bud is a shoot or scion in embryo. " A new application of budding has been made by Knight. It is that of transferring ' a part of the abundant blossom-buds from one tree to the barren branches of others.
Seite 320 - ... granite. This substance consists of three ingredients, quartz, feldspar, and mica. The quartz is almost pure siliceous earth, in a crystalline form. The feldspar and mica are very compounded substances ; both contain silica, alumina, and oxide of iron: in the feldspar there is usually lime and potassa ; in the mica, lime and magnesia.
Seite 346 - When grafting has been omitted, or has failed, in spring, budding comes in as an auxiliary in summer. " Season of budding. — The operation of common budding is performed any time from the beginning of July to the middle of August ; the criterion being the formation of buds in the axillae of the leaf of the present year. The buds are known to be ready by the shield or portion of bark, to which they are attached, easily parting with the wood. The buds preferred are generally those on the middle of...
Seite 253 - Genessee, where the winter is rigorous, the cotton wood is seventy or eighty feet in height and three or four feet in diameter. The leaves are deltoid, or trowel-shaped, approaching to cordiform, always longer than they are broad, glabrous and equally toothed ; the petioles are compressed and of a yellowish green, with two glands of the same color at the base; the branches are angular, and the angles form whitish lines, which persist even in the adult age of the tree. The female aments are six or...

Bibliografische Informationen