Simon Newcomb's measurements of the speed of light, from Stigler
(1977).  The data are recorded as deviations from $24,\!800$
nanoseconds.  Table 3.1 of Bayesian Data Analysis.

28 26 33 24 34 -44 27 16 40 -2
29 22 24 21 25 30 23 29 31 19
24 20 36 32 36 28 25 21 28 29
37 25 28 26 30 32 36 26 30 22
36 23 27 27 28 27 31 27 26 33
26 32 32 24 39 28 24 25 32 25
29 27 28 29 16 23