in 1916, where she held the position of Associate Professor of Physics and Dean of Women for two years, and served on the policy and planning committee of the university. There is controversy on the subject of Gates' exit from her position at the University of Illinois, while some sources suggest that Gates was fired by the University for problems relating to drug use, others argue that she faced a great deal of difficulty with the school administration, either due to an inclination for research as opposed to administrative work, or due to discriminatory practices. After 1918, Gates largely retired to the private sector, serving as the General Secretary for the YMCA of New York (1918-1919, 1921-1922), and teaching at two private schools in New York and Bryn Mawr, before retiring entirely to research work after a final stint as a physics teacher at Roycenmore School in Evanson, Illinois (1928-1931). When asked about her reason for leaving the University of Illinois, President James told the YWCA, "She did not like the limited scope for her activity which the office here presented and therefore was looking all the time for a wider field. She needs a wider opportunity for her abilities and energy." After 1918, Gates largely retired to the private sector, serving as the General Secretary for the YMCA of New York (1918-1919, 1921-1922), and teaching at two private schools in New York and Bryn Mawr College, before retiring entirely to research work after a final stint as a physics teacher at Roycenmore School in Evanson, Illinois (1928-1931). Contributions to physics Effect of Heat on Excited Radioactivity Published in 1903, this paper expands on the work that Gates did with Ernest Rutherford and Harriet Brooks. This paper explains in detail a series of experiments Gates performed under the direction of Rutherford examining the relationship between heat and excited radioactive particles, concluding with 4 distinct observations. Excited radioactivity cannot be destroyed by heat. Active particles are removed from wires (primarily platinum in the detailed experiments) at a temperature just below white heat, and are transferred unchanged to the surfaces of the cooler solids nearby. By removing the surrounding gas as fast as the wire is heated, a majority of radioactive particles can be carried off with it. The removal of the excited radioactivity from the wire is probably due to a volatilization of the radioactive material. On the Nature of Certain