Rara avis in terris: or the compleat miner, : in two books; the first containing, the liberties, laws and customs of the lead-mines, within the Wapentake of Wirksworth in Derbyshire; in fifty nine articles, being all that ever was made. The second teacheth, the art of dialling and levelling grooves; a thing greatly desired by all miners; being a subject never written on before by any. /