Verflüssigung der Kohle und Herstellung der Sonnentemperatur

Before I have been disproven by other attempts, I must consider it proven that in my experiments we are dealing with the liquid state of pure carbon. Intended as a simple concluding remark of a lecture, this statement sparked a heated discussion led by Otto Lummer at the time, which also affected the diamond industry, as the artificial production of diamonds would amount to a revolution in the sector. Ultimately, the author feels compelled to use the present work to clarify his research and take a stance. This is supported by a summary of the known history of carbon up to that point. High-quality reprint of the original edition from 1914.