Radium treatment

Thurs., October 24, 1935 - Nice warm day.  Margaret and Allen Christensen visited school this afternoon.  Grandmother had another radium treatment today.  Aunt Emma is going to stay here until Saturday nite.
Fri., October 25, 1935 - Cloudy and sprinkled a little this morning.  Went to lodge tonite.  Howard brought me up the hill.
Sat., October 26, 1935 - Drove out to Florenz Niemann's to have Irene's and my order signed, took the orders to Irene, stopped at Wagners to tell Edna I couldn't have card club this Friday.  Went to Norfolk about 11:00 with Helen and Irene.  They had been to Wayne and cashed my order.  Went to the Masquerade party at Uncle Hans' tonite.  I got first prize for the girls.  It was a picture.

I am not sure why Grussmother had radium treatments, but I researched a little bit and found the beginning of the end of such treatments.  From wikipedia:

     Concerns about radium were brought up before the United States Senate by California Senator John D. Works as early as 1915. In a floor speech he quoted letters from doctors asking about the efficacy of the products that were marketed. He stressed that radiation had the effect of making many cancers worse, many doctors thought the belief that radium could be used to cure cancers at that stage of the development of therapy was a "delusion" — one doctor quoted cited a failure-to-success rate of 100 to 1 — and the effects of radium water were undemonstrated.

     Around the start of the 1920s, new public health concerns were sparked by the deaths of factory workers at a radioluminescent watch factory, later referred to as the Radium Girls. In 1932, a well-known industrialist, Eben Byers died of radiation poisoning from the use of Radithor, a radium water guaranteed by the manufacturer to contain 2 μCi of radium. Cases sprung up of the development of carcinoma in patients who had used conventional radium therapy up to 40 years after the original treatments.

     The Radium Girls were female factory workers who contracted radiation poisoning from painting watch dials with self-luminous paint. Painting was done by women at three different sites in the United States, and the term now applies to the women working at the facilities. The first, United States Radium factory in Orange, New Jersey, beginning around 1917, at Ottawa, Illinois, beginning in the early 1920s, and a third facility in Waterbury, Connecticut.

     The women in each facility had been told the paint was harmless, and subsequently ingested deadly amounts of radium after being instructed to "point" their brushes on their lips in order to give them a fine point; some also painted their fingernails, face and teeth with the glowing substance. The women were instructed to point their brushes because using rags, or a water rinse, caused them to waste too much time and waste too much of the material made from powdered radium, gum arabic and water.

     Five of the women in New Jersey challenged their employer in a case over the right of individual workers who contract occupational diseases to sue their employers under New Jersey's occupational injuries law, which at the time had a two-year statute of limitations, but settled out of court. Five women in Illinois who were employees of the Radiant Dial Company (which was unaffiliated with the United States Radium Corporation) sued their employer under Illinois law, winning damages in 1938.