Thomas Augustus Jaggar

1871 – 1953

• Abrasion hardness
• Absaroka Mountains 1893 and 1987, Jaggar's diaries and photographs
• Ein mikrocklerometer zur härtebestimmung
• Evolution and the philosophy of change
• Experiments illustrating erosion and sedimentation
• My experiments with volcanoes
• On the geologic evidences from fragmental inclusions contained in certain dikes of the Boston Basin
• Origin and development of craters
• Seismometric investigation of the Hawaiian lava column
• Special bulletin of Hawaiian volcano observatory
• Steam blast volcanic eruptions
• The cross of Hawaii