Chishull cites the books by Beger, Goltzius, Wheler and Haym, asking if he could borrow Beger for the purpose, and adding 'there are seven more wanting, unless Mr Haym could obtain them from ye cabinets of ye D. of Devonshire, or any Ld. Pembroke.' (Royal Society, MS 253/187; Burnett 2020b, pp. 608-9, 977, 1018 n. 128)