Experimental data for Indiana and Massachusetts were lumped together, and the rounded average was calculated. See Bryan 1901. Bryan, B. C. (1901). "The Steaming Radius of United States Naval Vessels". Journal of the American Society for Naval Engineers. 13 (1): 50–69. doi:10.1111/j.1559-3584.1901.tb03372.x. (subscription required)
Bryan 1901. Bryan, B. C. (1901). "The Steaming Radius of United States Naval Vessels". Journal of the American Society for Naval Engineers. 13 (1): 50–69. doi:10.1111/j.1559-3584.1901.tb03372.x. (subscription required)