Las manos aparecían siempre manchadas de tinta y distintos productos químicos, siendo, sin embargo, de una exquisita delicadeza, como innumerables veces eché de ver por el modo en que manejaba Holmes sus frágiles instrumentos de física.
His hands were invariably blotted with ink and stained with chemicals, yet he was possessed of extraordinary delicacy of touch, as I frequently had occasion to observe when I watched him manipulating his fragile philosophical instruments.