Yes, this is the whole paper.

Source on PubMed Central included the reviewer’s comment:

I have studied this manuscript very carefully with lemon juice and X-rays and have not detected a single flaw in either design or writing style.  I suggest it be published without revision.  Clearly it is the most concise manuscript I have ever seen — yet it contains sufficient detail to allow other investigators to replicate Dr. Upper’s failure.  In comparison with the other manuscripts I get from you containing all that complicated detail, this one was a pleasure to examine.  Surely we can find a place for this paper in the Journal — perhaps on the edge of a blank page.