. The gardener's assistant; a practical and scientific exposition of the art of gardening in all its branches. Fig. 803. and the water may force its way through thethinner part of the mass of clay, as at D; byboring at c an artesian well would be Fig. 804. Fig. 805 also represents porous subsoil, inwhich the water is confined by layers of clay,except when it forces passages, or springs, from

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Keywords: ., bookcentury1900, booksubjectgardening, booksubjecthorticulture