EditorialThe English Channel. Longitudinal section of the submarine tunnel between France and England (Dover side). 1- Artificial dike, with vertical inlet leading to the tunnel. 2- Permeable slate layer. 3- Sea level. 4- Compact and waterproof layer of slate. ...
EditorialEL Canal de la Mancha. Secci?n longitudinal del t?nel submarino entre Francia e Inglaterra (lado de Dover).1-Dique artificial, con entrada vertical que conduce al t?nel, 2-Capa de pizarra permeable 3-Nivel del mar. 4-Capa compacta e impermeable, de piz...
EditorialDrainage of Lands where the soils are porous above and retentive below, Drainage of soils whose upper layers are permeable to water and lower layers store water, Fig. 43, Pl. XLIII, after p. 332, R.W. Dickson: Practical agriculture, or, a complete syst...
EditorialEL Canal de la Mancha. Secci?n longitudinal del t?nel submarino entre Francia e Inglaterra (lado de Dover).1-Dique artificial, con entrada vertical que conduce al t?nel, 2-Capa de pizarra permeable 3-Nivel del mar. 4-Capa compacta e impermeable, de piz...
EditorialTerracotta jug, Cypro-Archaic I, ca. 750?600 B.C., Cypriot, Terracotta, H. 7 3/4 in. (19.7 cm), Vases, In this extraordinary evocative depiction, a woman faces off a horned serpent whose head looks vaguely like that of a ram. The protagonists appear we...