Bed of lava river on Mayon   Creator:   Powell; Ifor Ball (1902-1986); historian ( Photographer ) Powell, Ifor Ball, 1902-1986 ( contributor ) Publication Date:   1929 Type:   Photograph Source Institution:   SOAS University of London Holding Location:   Archives and Special Collections Subject Keyword:   Mayon Volcano (Philippines) Spatial Coverage:   Asia -- Philippines -- Albay -- Bicol -- Mayon Volcano Bed of lava river on Mayon	Mayon   Creator:   Powell; Ifor Ball (1902-1986); historian ( Photographer ) Powell, Ifor Ball, 1902-1986 ( contributor ) Publication Date:   1929 Type:   Photograph Source Institution:   SOAS University of London Holding Location:   Archives and Special Collections Subject Keyword:   Mayon Volcano (Philippines) Spatial Coverage:   Asia -- Philippines -- Albay -- Bicol -- Mayon Volcano Mayon	Trail (cinder) at foot of Mayon   Creator:   Powell; Ifor Ball (1902-1986); historian ( Photographer ) Powell, Ifor Ball, 1902-1986 ( contributor ) Publication Date:   1929 Type:   Photograph Source Institution:   SOAS University of London Holding Location:   Archives and Special Collections Subject Keyword:   Mayon Volcano (Philippines) Spatial Coverage:   Asia -- Philippines -- Albay -- Bicol -- Mayon Volcano Trail (cinder) at foot of Mayon	Trail I tried to follow up Mayon   Creator:   Powell; Ifor Ball (1902-1986); historian ( Photographer ) Powell, Ifor Ball, 1902-1986 ( contributor ) Publication Date:   1929 Type:   Photograph Source Institution:   SOAS University of London Holding Location:   Archives and Special Collections Subject Keyword:   Mayon Volcano (Philippines) Spatial Coverage:   Asia -- Philippines -- Albay -- Bicol -- Mayon Volcano Trail I tried to follow up Mayon