BH BIO

Henry Horatio Dixon

(19 May) 1869 - 1953 (20 Dec)





Henry Horatio Dixon was an Irish plant physiologist who, with physicist John Joly, described the mechanism of the flow of sap through the xylem against gravity (cohesion-tension theory). Born in Dublin, he graduated with first-class honors in natural science from Trinity College in 1891, and went on to study at Bonn before returning to Trinity as a professor's assistant. He would later become a full professor, Director of the Botanic Garden, and Keeper of the Herbarium. Though best known for his work in physiology, he published research on a variety of subjects, including cytology, resistance of seeds to temperature stress, marine phytoplankton, and wood identification.


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1893. Dixon, Henry H.. Note on the Role of Osmosis in Transpiration. Proceedings of the Royal Irish Academy (1889-1901) (): 767-775.Google Scholar
1893. Dixon, Henry H.. On the Vegetative Organs of Vanda teres. Proceedings of the Royal Irish Academy (1889-1901) (): 441-458.Google Scholar
1893. Dixon, H. H.. On the Chromosomes of Lilium longiflorum. Proceedings of the Royal Irish Academy (1889-1901) (): 707-720.Google Scholar
1893. Dixon, H. H.. Note on the Nuclei of the Endosperm of Fritillaria imperialis. Proceedings of the Royal Irish Academy (1889-1901) (): 721-726.Google Scholar
1894. Dixon, H. H. and J. Joly. ON THE ASCENT OF SAP. Annals of Botany (32): 468-470.Google Scholar


1894. DIXON, HENRY H.. Fertilization of Pinus silvestris. Annals of Botany (29): 21-34.Google Scholar
1895. DIXON, H. H.. THE NUCLEI OF LILIUM LONGIFLORUM. Annals of Botany (36): 663-665.Google Scholar
1895. DIXON, HENRY H. and J. JOLY. The Path of the Transpiration-Current. Annals of Botany (35): 403-420.Google Scholar
1895. DIXON, H. H.. ABNORMAL NUCLEI IN THE ENDOSPERM OF FRITILLARIA IMPERIALIS. Annals of Botany (36): 665-666.Google Scholar
1896. Dixon, Henry H.. On the Osmotic Pressure in the Cells of Leaves. Proceedings of the Royal Irish Academy (1889-1901) (): 61-73.Google Scholar
1896. Dixon, Henry H.. On the Effects of Stimulative and Anæsthetic Gases on Transpiration (Preliminary Note). Proceedings of the Royal Irish Academy (1889-1901) (): 618-626.Google Scholar
1896. Dixon, Henry H.. Transpiration into a Saturated Atmosphere. Proceedings of the Royal Irish Academy (1889-1901) (): 627-635.Google Scholar
1897. DIXON, H. H.. STRUCTURE OF CODIUM. Annals of Botany (44): 588-590.Google Scholar
1897. DIXON, H. H.. THE TENSILE STRENGTH OF CELL-WALLS. Annals of Botany (44): 585-588.Google Scholar
1898. DIXON, HENRY H.. GELATINE AS A FIXATIVE. Annals of Botany (45): 117-118.Google Scholar
1898. Dixon, Henry H.. Self-Parasitism of Cuscuta reflexa. Proceedings of the Royal Irish Academy (1889-1901) (): 219-220.Google Scholar
1899. DIXON, H. H.. The Possible Function of the Nucleolus in Heredity. Annals of Botany (50): 269-278.Google Scholar
1900. Dixon, Henry H.. On the First Mitosis of the Spore-Mother-Cells of Lilium. Proceedings of the Royal Irish Academy (1889-1901) (): 1-12.Google Scholar
1902. DIXON, HENRY H.. RESISTANCE OF SEEDS TO HIGH TEMPERATURES. Annals of Botany (64): 590-591.Google Scholar
1915. Dixon, H. H. and Wm. Crocker. Ascent of Sap. Botanical Gazette (1): 74-75.Google Scholar
1925. Dixon, H. H. and H. S. Wolfe. Transpiration and Sap Ascent. Botanical Gazette (1): 111-112.Google Scholar