EditorialMilitary vehicles navigate deep ruts and muddy conditions in Ukraine’s Lyman district on Christmas Day, Dec. 25, 2022. (Tyler Hicks/The New York Times)
EditorialTypes of dykes_3, Tectonics, displacements of the mountains / terrain, deep ruts, broad trenches, woodcut, p. 32, (Liber tertius), Manuel, Hans Rudolf (graveur sur bois), 1556, Georgius Agricola: De re metallica libri XII: quibus officia, instrumenta, ...