PART II. 



185 



SCIENCE OF GARDENING. 



lishine how much this I^ns the power requisite either to fill 

 tin- syringe or emnty it. A child may do with Head's engine, 

 hat nquilW a man in the common kind. This instrument may 

 IK- i-o.isuleml as superseding not only the cofnmon hand-syringes, 

 l.ut even the barrow-engine, and other machines of this kind to 

 which the same improvements are not applied. 



SUBSECT. 3. Utensils of Protection. 



1420. Utcntils of shade, shelter, and exclusion are the cover, 

 shade, blancher, hand-glass, and bell-glass. 



1421. Plant-covers arc of different species. 



1422. Thejwrtable doth ewer or shelter is of different species: 

 it consists of a frame of wicker-work, of any size, from that 

 of a hand-glass, to six or eight feet high, which is covered 

 with gauze, oiled canvas, matting, and sometimes entirely with 

 wicker-work. It is used for protecting half-hardy shrubs and plants 

 in the winter season, and when recently transplanted. 



1423. The portable paper cover or shelter is a small frame, like 

 the skeleton of a hand-glass, covered with oil-paper, and is used 

 for protecting cauliflower-plants, striking cuttings, &c. 



1424. Shades are of three species. The place -umbrella (Jig. 186.) 

 resembles the domestic instrument of that name ; but instead of 

 the ordinary handle, has a pointed rod, shod with iron, for insertion 

 in the ground. It is used for shading tender plants from the 

 sun, or sheltering them from the rain. For both purposes it is conve- 

 nient to have a joint in the stem, so as to incline the cover afccord- 



ing to the situation of the sun and the direction of the rain. They M 

 are much used in the Paris garden, and at Monza, in Lombardy. 



1425. The portable wire shade is a bottomless cage of wire or wicker work, to place 

 over tender plants, to protect them from excess of wind, sun, and rain. They are a 

 good deal used in the botanic gardens of the continent, for moderating the direct influence 

 of the sun on plants of cold climates. 



1426. The earthenware shade (Jigs. 187, & 188.) is in the form of a flower-pot, 

 but with a section cut from one side to admit the air and light. This open side in the 

 case of auriculas and Alpine plants, is placed to the north, and in the case of tender 

 plants to the south, or other points. These utensils are exceedingly useful in transplanting 

 tender plants, and in cultivating Alpine plants. One species (Jig. 188.) is entirely per- 

 forated with holes, for shading ferns, mosses, and fungi. Common pots are often used 

 for sheltering and shading newly transplanted articles with the greatest benefit. 



1 427. Blanchers are any close utensil that when whelmed over a plant will exclude the 

 light. The most common is the blanching-pot, which is used to exclude light from sea- 

 cale and rhubarb-stalks, and some other culinary vegetables, where the green color is to 

 to be avoided. In the Pyrenees they are used for blanching celery. 



1428. The conic blanching-pot is in the form of a sugar-loaf, and is used in France for 

 blanching lettuce and endive. (Lasteyrie.) In Valentia, asparagus is blanched stalk 

 by stalk, by portions of reed with a knot or joint placed over each. (Ibid.) - 



190 



1429. The hand-glass is of various species. 



The leaden hand-glass is a small portable glazed case, formed by grooved strips of lead, and is either 

 quarc or polygonal in the plan and roof. It is used for the protection of culinary and other plants, 

 during the winter months; its first cost is less than that of any other hand-glass. 



TV copper hand-glass (fig. 189.) is a very light and elegant variety of hand-glass, in which the bars are 



formed of copper, the sides bevelled, and the top or roof sometimes projects over the latter, with glass 



The lead hand-glass is the cheapest, but this is by far the most elegant ; they are manufactured 



"I Jwden, and others, in Birmingham, and constitute one of the most elegant utensils used in gardening. 



rV cart-iron kand-glass (fig. 190.) consists of two parts, the sides either square or polygonal, and the 



top of suitable ihape. Each side is cast separate, with screws and nuts j the four sides are afterwards 



