Oswald Heer was a Swiss botanist and palaeontologist who stayed in Madeira in 1850–51. He wrote on the fossil plants of São Jorge and on tree growth on the island.
2 · Chronology
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1850–1851
Dr Osvaldo Heer stayed in Madeira from winter 1850 to spring 1851, making phenological observations.
Osvaldo Heer published a study of the fossil plants of São Jorge.
