getting many other paleontologists of the day interested in the fossil resources of Kansas. Sternberg served at Fort Riley until July 1870, when he was ordered to Governors Island, New York. In the meantime, he had remarried on September 1, 1869, at Indianapolis, Indiana, to Martha L. Pattison, a daughter of Thomas T. N. Pattison of that city. Later career Yellow fever During two years at Governors Island and three (1872–75) at Fort Barrancas, Florida, Sternberg had frequent contacts with yellow fever patients, and at the latter post, he contracted the disease himself. He had earlier noted the efficiency of moving inhabitants out of an infested environment and successfully applied that method to the Barrancas garrison. At about this time, Sternberg published two articles in the New Orleans Medical and Surgical Journal ("An Inquiry into the Modus Operandi of the Yellow Fever Poison," July 1875, and "A Study of the Natural History of Yellow Fever," March 1877) which gained him status as an authority on yellow fever. While convalescing from his bout with the disease in 1877 he was ordered to Fort Walla Walla, Washington, and later that year he participated in a campaign against the Nez Perce Indians. The spent his spare hours in study and experimentation which laid a foundation for his later work. In 1870 he perfected an anemometer and patented an automatic heat regulator which later had wide negative use. On December 1, 1875, Sternberg was promoted major, and in April 1879, he was ordered to Washington, D. C., and detailed with the 1880 Havana Yellow Fever Commission. His medical colleagues on the Commission were Doctors Stanfard Chaille of New Orleans and Juan Guiteras of Havana. Sternberg was assigned to work on the problems relating to the nature and natural history of the disease and especially to its etiology (origins). This involved the microscopical examination of blood and tissues in which he was one of the first to employ the newly discovered process of photomicrography. He developed high efficiency in its use. In the course of this work, he spent three months in Havana closely associated with Dr. Carlos Finlay, the main proponent of the theory of mosquito transmission of yellow fever. Bacteriology milestones In 1880, the Commission concluded that the solution of yellow fever causality must await further progress in the new science of bacteriology. Sternberg was soon sent to New Orleans to investigate the