Letter, from John Flamsteed to Henry Oldenburg, dated at Derby States that he will send his annual astronomical predictions earlier, and in Latin, so that they can be read by those abroad, and wishes for constructive criticisms about his methodology; as a postcript he sends observations of the occultation of Antares by the moon (see EL/F1/66a for list of calculations of this for March and May 1670) 30 May 1670