Publications
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The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1953 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1953
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1952 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1952
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1951 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1951
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1950 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1950
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
Fifth special report of the Hawaiian Volcano Observatory of the Hawaiian Volcano Research Association and the U.S. Geological Survey: Abrasion hardness Fifth special report of the Hawaiian Volcano Observatory of the Hawaiian Volcano Research Association and the U.S. Geological Survey: Abrasion hardness
After reviewing the work of sclerometry, this paper shows that yielding and relative softness are the mechanical basis of what should be called malacometry. The experiments have been made with diamond drills, ring cuts, end millers and grinding wheels. Auerbach's "limited scope of the Mohs list" is quantitatively confirmed. The wear of diamonds is examined. A program is carried out, for...
Authors
T. A. Jaggar
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1949 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1949
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
Fourth special report of the Hawaiian Volcano Observatory of the U.S. Geological Survey and the Hawaiian Volcano Research Association: Steam blast volcanic eruptions: A study of Mount Pelée in Martinique as type volcano Fourth special report of the Hawaiian Volcano Observatory of the U.S. Geological Survey and the Hawaiian Volcano Research Association: Steam blast volcanic eruptions: A study of Mount Pelée in Martinique as type volcano
The investigation is concerned with the author's expedition to Martinique and St. Vincent in 1902 and comparison of the experience of investigators and sufferers with that of others in so-called "explosive" eruptions. The Hawaiian mechanism is reviewed with special reference to rifts, underground water, intrusion furnace, wedge rupture, and lowering of magma. These features of structure...
Authors
T. A. Jaggar
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1948 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1948
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1947 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1947
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1946 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1946
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1945 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1945
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...
The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1944 The volcano letter: A weekly news leaflet of the Hawaiian Volcano Research Association - 1944
The Volcano Letter was an informal publication issued at irregular intervals by the Hawaiian Volcano Observatory (HVO) during the years 1925 to 1955. Individual issues contain information on volcanic activity, volcano research, and volcano monitoring in Hawaii. Information on volcanic activity at other locations is also occasionally included. The Volcano Letter was published by HVO...