Topics containing "subsoil"
soil, wheat, cultivation, soils, climate, acre, supply, oats, sown, green, water, clover, valuable, weather, garden, quantity, cutting, land, adapted, improved, require, fertility, vegetables, heat, Agricultural, hardy, experiment, producing, plough, peat, turnips, dung, sowing, rainfall, warm, pastures, localities, subsoil, watered, cultivate, weeks, potato, fodder, compost, southern, growers, selection, acres, gardens
rock, strata, hills, district, sea, quartz, slate, veins, deposits, gravel, vein, thick, shale, extent, structure, drift, dip, glacier, bottom, distance, shaft, sandstone, top, character, shales, origin, miles, Creek, stratum, tunnel, fossil, quarry, formed, marine, locality, formations, fine, sands, gneiss, Survey, glaciers, forming, remains, Cretaceous, deposition, slates, drainage, fragments, extends