Letter, from John Flamsteed to Henry Oldenburg, dated at Derby Sends corrections for his observations of Jupiter printed in 'Philosophical Transactions' (vol 7, no 82, p 4036) (see EL/F1/85); sends an account of the observations of the moon and the star cluster Pleiades (EL/F1/88); concerning recent transit of Mars; states that family commitments have meant that there is less time for making observations 25 July 1672