Figure 46. The stern derrick of the 'Porcupine' showing the 'accumulator' , the
dredge, and the mode of stowing the rope.
In: Thomson, Wyville. 1873. The Depths of the Sea. MacMillan and Co., London.
Image ID: expl3219, Voyage To Inner Space - Exploring the Seas With NOAA Collect Credit: NOAA Central Library Historical Collections
