Probably in the same year, Watson produced an unusual circular stratigraphical diagram A DELINEATION of the ten deepest STRATA as yet discovered in the MINERAL DISTRICTS of DERBYSHIRE.
Kemungkinan pada tahun yang sama, Watson membuat diagram stratigrafi melingkar yang tidak umum "PENGGAMBARAN sepuluh STRATA kedalaman seperti yang ditemukan di DISTRIK MINERAL DERBYSHIRE" (A DELINEATION of the ten deepest STRATA as yet discovered in the MINERAL DISTRICTS of DERBYSHIRE).