Report on the Ventilation of Mines & collieries by John Phillips 1850 - Presented to Parliament by Command of Her Majesty, 64pp, illustrations within text and several Plans & Sections including geological sections of seams in the vicinity of Jarrow; Map of Workings dated 1845, partly hand coloured; a hand coloured Map of Coal District of Northumberland and Durham and another of Yorkshire & Derbyshire; plans relating to various Collieries including Walker, Thornley, Wallsend, Wingate, Grange, Hetton, Haswell et al, an early inquiry in an effort to reduce the increasing loss of life from gas explosions, folio, blue paper printed wraps, spine with loss, rare item.