This
is Volume 9 Part 3 of the Bulletin of the Bureau of Standards. It
contains the original research and results on alcohol and water mixtures
upon which the current gauging regimen is based. Authored by Osborn
& Pearce who were the principal investigators. This is a 4Mb file
and will take some time to open. You might want to download it first
and then give your Adobe Reader a minute or two to open it.