21. 010095.de.56(9) Reference (shelfmark): 010095.de.56(9) Title: Masses of lava slag at Alta Vista. Photographer: Smyth, Charles Piazzi Scope & Content: Genre: Scientific Photography Stereoscopic view, facing p. 215, of lava mounds. These blocks, 'varied and grotesque,' are described on p. 250. Collection Area: Printed Collections Languages: Not applicable Date Range: 1856 Extent: 1 item