counterparts. Agnes McGee taught at the Oregon Health Science Center. Alice Hunt was appointed instructor in anesthesia with university rank at the Yale University School of Medicine beginning in 1922 and continuing for 26 years. She authored the 1949 book Anesthesia, Principles and Practice, likely the first nurse anesthesia textbook. The first challenge to the nurse's right to administer anesthesia came in 1911 from Francis Hoeffer McMechan, a native Cincinnati physician, who felt that the field of anesthesia should belong solely to physicians. McMechen challenged the practice of nurse anesthesia with the Ohio Medical Board, which along with Ohio State Attorney General ruled in 1916 that only a registered physician could administer anesthesia. Surgeons at the Lakeside Hospital in Cleveland, such as Crile, initially obeyed the ruling; however, in 1917, Crile and his supporters successfully lobbied the Ohio legislature to create an exemption within the Medical Practice Act for nurses who were educated appropriately to administer anesthesia under the supervision of a physician. Perhaps the most noteworthy challenge occurred in 1934, when nurse anesthetist Dagmar Nelson was charged by an anesthesiologist, William VaneChalmer-Francis, with practicing medicine and violating California Medical Practice by administering anesthesia without a license. The case went all the way to the California Supreme court, but Nelson was given a favorable ruling at each level of the case. The Dagmar Nelson case was won via precedents set by early nurse anesthetists. The California Supreme Court reasoned that Nelson's practice of anesthesia was in “accordance with the uniform practice in operating rooms” not only in Los Angeles but also throughout the country including the Mayo Clinic, where Nelson had trained and “where...one hundred thousand surgical operations had been performed” with anesthetic administered by nurses. Despite the rapid growth of the nurse anesthetist profession following the Great War, World War II again precipitated a shortage of anesthetists. A recruitment campaign was begun, but this was quickly followed by concern about the emergence of “ill advised and unjustified schools”. Helen Lamb in turn stressed the importance of maintaining educational standards even in times of shortages. By the end of WWII, the military had trained more than 2000 nurses to provide anesthesia using a program patterned by the NANA. The quality of nurse anesthesia education was again upgraded following WWII, and although university affiliation was advised, most programs were still hospital based. In 1933, the NANA established an Education Committee to