25-26. A Simple Device for Measuring Speed of Exhaust of Large Capacity Mercury Vapor Pumps -- Howard, H.C.; A Constant Level Device for Liquid Air Baths -- Scott, B. Bernard and Howard, H.C., 1935

25-26. A Simple Device for Measuring Speed of Exhaust of Large Capacity Mercury Vapor Pumps -- Howard, H.C.; A Constant Level Device for Liquid Air Baths -- Scott, B. Bernard and Howard, H.C., 1935, Box: 4. Carnegie Institute of Technology Reprints Collection, 0003-0001. Carnegie Mellon University Archives. http://findingaidsdev.library.cmu.edu:8081/repositories/2/archival_objects/21546 Accessed November 23, 2024.