The citation is ambiguous. It may mean:
40 Stat. 1275 (Pub. Law 65-323)
AN ACT Making appropriations for the construction, repair, and preservation of certain public works on rivers and harbors, and for other purposes. March 2, 1919 1275
You can view this U.S. Statutes at Large citation at these source(s):
40 Stat. 1275
U.S. Statutes at Large
PDF - https://govtrackus.s3.amazonaws.com/legislink/pdf/stat/40/STATUTE-40-Pg1275.pdf
also:
We also found 1 parallel citation:
40 Stat. 1272 (Pub. Law 65-322)
AN ACT To provide relief in cases of contracts connected with the prosecution of the war, and for other purposes. March 2, 1919 1272
Link is to an internal page within a statute beginning on page 1272.
You can view this U.S. Statutes at Large citation at these source(s):
40 Stat. 1272
U.S. Statutes at Large
PDF - https://govtrackus.s3.amazonaws.com/legislink/pdf/stat/40/STATUTE-40-Pg1272b.pdf
also:
We also found 1 parallel citation: