View this artwork by appointment, at Tate Britain's Prints and Drawings Rooms
The subject of this sketch is Lake Agnano, a former crater lake in the Campi Flegrei (Phlegraean or Burning Fields) which was drained in 1870. The prospect appears to look north-east from the slopes of the Solfatara crater towards the distant hill of Camaldoli on the left, and Vesuvius and Monte Somma on the right. The additional study in the bottom right-hand corner may represent the Grotto del Cane (Dog’s Grotto), so-called because dogs were traditionally used to demonstrate the effect of the poisonous fumes which arose from the cave. For further views see folios 75 and 76 verso–77 (D15703 and D15706–7; Turner Bequest CLXXXIV 73 and 74a–75).