Dorothea Pertz

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Dorothea Frances Matilda "Dora" Pertz FLS (14 March 1859 – 6 March 1939) was a British botanist. Her upbringing was formative, and she was exposed to a "cosmopolitan and intellectual milieu" that shaped her life and career. She co-authored five papers with Francis Darwin, Charles Darwin's son. She was made a Fellow of the Linnean Society, among the first women admitted to full membership.

Biography

Dora Pertz was born in London on 14 March 1859 to Georg Heinrich Pertz and his second wife, Leonora Horner, daughter of Leonard Horner, who was a progressive intellectual and an adamant supporter of Darwinism, a fact he noted in his final address. She grew up in a family where women were well-educated and intellectually active; one of her aunts was the botanist Katharine Murray Lyell, who was a biographer of Charles Lyell, her brother-in-law. Through family connections she met many prominent naturalists including Charles Darwin. Pertz spent most of her youth in Berlin, where her father was Royal Librarian, though they visited England each year. After her father's death in 1876, Pertz moved to Florence with her mother. Later she returned to England and in 1882 she was admitted to Newnham College, Cambridge. She spent a year in Italy before returning to Cambridge in 1884. The next year she took part one of the Natural Sciences Tripos, with her subjects including botany, and gained second-class honours. Once women were allowed titular degrees, she would take her MA in 1932.

Pertz subsequently undertook research into plant physiology, working under Francis Darwin, a reader at the university.Vorlage:Efn-ua From 1892 to 1912 they jointly published five papers;Vorlage:Sfn during this period she also collaborated with William Bateson, and she published a paper with him concerning inheritance in Veronica. She also produced two papers independently. In 1905 she was made a fellow of the Linnean Society, among the first women admitted as full members, though she did not take part in the movement advocating for women to be fellows. After Darwin's retirement, Pertz was encouraged by Frederick Blackman to undertake research on meristematic tissue, but after a year observing germinating seeds her results were inconclusive. She abandoned research, possibly over disappointment, though Agnes Arber claimed "she came to recognize that the plant physiology of the twentieth century was developing on lines widely divergent from those on which she had been educated and that it demanded a grasp of mathematics, physics, and chemistry, which she did not possess."

After Pertz had given up research, at Blackman's suggestion she worked on indexing German literature on plant physiology, including the journals Biochemische Zeitschrift and Zeitschrift für Physiologische Chemie. Despite the difficulty of the task, she completed the index up to the year 1935. Between 1923 and 1936 she provided illustrations for her friend Edith Rebecca Saunders' series of papers on floral anatomy, and both the paper and illustrations were highly respected.Vorlage:Sfn Pertz did much of her work unpaid out of passion for science, and she never had a formal appointment at Newnham or the university. She also performed charity work, including working as a masseuse at a convalescent hospital in Cambridge during the First World War.

After several years of illness Dora Pertz died in Cambridge on 6 March 1939. She was cremated and buried at Brookwood Cemetery.

Published works

In chronological order:

• Dorothea F. M. Pertz: On the disposal of the nutlets in certain labiates. 1. Jahrgang. London 1884, S. 8.  reprinted from Dorothea F. M. Pertz: On the disposal of the nutlets in certain labiates. In: Natural science. 5. Jahrgang, Nr. 32. London Oktober 1894. 

And with Francis Darwin:

• Francis Darwin, Dorothea F. M. Pertz: On the artificial production of rhythm in plants. In: Annals of Botany. os-6. Jahrgang, Oktober 1892, S. 245–264 (oxfordjournals.org [PDF; abgerufen am 20. Dezember 2014]). 
• Francis Darwin, Dorothea F. M. Pertz: On the artificial production of rhythm in plants, with a note on the position of maximum heliotropic stimulation. In: Annals of Botany. os-17. Jahrgang, Januar 1903, S. 93Vorlage:Ndash106 (oxfordjournals.org [PDF; abgerufen am 20. Dezember 2014]). }
• Francis Darwin, Dorothea F. M. Pertz: On the distribution of statoliths in Cucurbitaceae. In: Annals of Botany. os-18. Jahrgang, 1904, S. 453Vorlage:Ndash454. 
• Francis Darwin, Dorothea F. M. Pertz: Notes on the statolith theory and geotropism. I. Experiments on the effects of centrifugal force. II. The behavior of tertiary roots. In: Proceedings of the Royal Society. 73. Jahrgang, 1904, S. 477Vorlage:Ndash90, doi:10.1098/rspl.1904.0065, JSTOR:116804. 
• Francis Darwin, Dorothea F. M. Pertz: The position of maximum geotropic stimulation. In: Annals of Botany. os-19. Jahrgang, 1905, S. 569Vorlage:Ndash570. 
• Francis Darwin, Dorothea F. M. Pertz: On a new method of estimating the aperture of stomata. In: Proceedings of the Royal Society B. 84. Jahrgang, 1912, S. 136Vorlage:Ndash154, doi:10.1098/rspb.1911.0058. Vorlage:Sfn

References

Sources

• Mary R. S. Creese, Thomas M. Creese: Ladies in the Laboratory? American and British Women in Science, 1800-1900 A Survey of Their Contributions to Research. Scarecrow Press, Lanham, Md 2000, ISBN 978-0-585-27684-7, S. 61 (google.com). 

External links

• Dora Pertz Ancestry.com UKVorlage:Subscription