[1] The first volume appeared in 1943, and to this day the so-called "D'Ans-Lax" is widely used as a reference for laboratory work.
She then studied in Berlin and received her doctorate in 1919 from Walther Nernst on electrical conductivity under pressure.
[3] Her studies were interrupted by the First World War until 1918, during which time she worked as an X-ray and operating room nurse as well as a bacteriologist and laboratory assistant.
In 1925, in collaboration with Marcello Pirani, she developed two processes for the production of the interior frosting of light bulbs at the Osramgesellschaft in Berlin, which were patented by the Osram company in 1927.
In 1945 she had to interrupt her work for Springer-Verlag and found a job at the Institute for Teaching Aids Research in the Faculty of Education at Humboldt University.