Greetings to all, This dissertation started when I read a report by Dr. Phelps, United States Volunteers, on the medical care at the Battle of Pittsburg Landing, April 6-7, 1862. "The sufferer [wounded] had not the alternative of choosing between transportation North (steamer) and death, and remaining upon the field with a reasonable chance of recovery, even though it were under the rudest shelter that the bedding found would have afforded."  [1] Dr. Phelps, believed hospital tents offered...