[3] In 1921, Henrici accepted a job offer from Arnold Theiler, the founding director of the Veterinary Institute at Ondestepoort in South Africa, whom she first met eight ago being a student at Basle.

[4] In November 1922, Henrici arrived in South Africa to study the seasonal variations of phosphate, a deficiency of which had been shown to cause the disease, in the vegetation of affected areas.

[3][6] In 1935, Henrici was awarded a Senior Captain Scott medal for outstanding scientific achievements from the South African Biological Society.

[4] In 1937, she was a president of the South African Association for the Advancement of Science Section C.[2] Henrici spent the whole year 1939 on vacation in Europe visiting plant physiological institutes and meeting some of her scientific correspondents.

[5] Poor health eventually forced her to enter a home for the aged in Bloemfontein, where she lived last two years of her life.