In 1909 he was the first to describe hemisporosis, and with Charles Lucien de Beurmann (1851-1923), he did extensive research in fungal diseases, especially sporotrichosis.
In 1909 he was the first to describe hemisporosis ("Hemispora stellata"). Along with Charles Lucien de Beurmann (1851-1923), he did extensive research in fungal diseases, especially sporotrichosis.