I think my experiences during the Civil War gave me something of a taste for military duty, for when in the summer or early fall of 1868 I noticed that an Army Medical Board was in session at New York, I at once made application to appear before it for examination for a position in the regular service. I was examined in October, 1868, and as the board continued in session for some time afterwards I waited with some anxiety and misgivings as to the result of my examination. I had the impression that the examination would be severe and was doubtful of my ability to pass. In this connection it is proper to say that some had failed in these examinations that afterwards became noted medical men. Among them, I was informed, was Dr. Austin Flint, Sr., whose work on the practice of medicine was standard and considered the best when I was a student. His son, Dr. Austin Flint, Jr., also became famous as our great Physiologist and his work on that subject is standard today. It was not until the following January that I heard from my examination, and was then directed to report at St. Louis to be mustered into the service as Acting Assistant Surgeon in the United States Army. There was necessarily some delay in disposing of the few things we had, some of which we sold and some of which we stored. Finally everything being disposed of, we left our home in Washington, Iowa, and from there, after a day with friends, took a train for Burlington, thence to Keokuk, where my wife remained visiting relatives, I going on to St. Louis to report. I was mustered into the service January 29th, 1869, and ordered to report to the Medical Director, Department of the Missouri at Leavenworth, Kansas, for assignment to duty. The Department of the Missouri at the time comprised the States of Missouri, Kansas, Colorado, New Mexico, The Indian Territory, and I think Arkansas.