Unpublished passage, apparently intended for 2nd tome of 'Exp. et Obs. Physicae'. Commenting on Boyle's hopes for the utility of the things reported in this work, and how it might encourage the learned to do experiments. Also expresses his intention `to insert a pretty number of Receipts & processes' in `divers of the following chapters'; cf. MS 186, fol. 105v.\r\nHand: Greg c 1690