Abstract: It is pointed out that there are two inconsistencies in the set of values of Δ T given in the Astronomical Ephemeris for 1960: (i) a discontinuity at 1923 due to a change in the adopted equinox, and (ii) a change at 1923 in the value of the Earth's ellipticity used in computing the Moon's tabular place, which gives rise to an erroneous term with the period of the revolution of the node. Recommendations are made for future discussion of lunar observations and the definitive determination of ephemeris time.