SANDEFJORD, the oldest and most famous spa in Norway, in Jarlsberg-Laurvik amt (county), 86 m. S.S.W. of Christiania by the Skien railway. Pop. (1900) 4847. The springs are sulphurous, saline and chalybeate. Specimens of jaettegryder or giant's cauldrons may be seen at Gaardaasen and Vindalsbugt, some upwards of 23 ft. in depth.