Hi The Oljeclioni lo sinking more Pits, obviated. 



and Owner of the Lands may he kept in good humour, and be 

 disposed to assent readily to every necessary indulgence. 



By a judicious forecast, and contrivance of the underground 

 works, the Air-pits or additional drawing Pits, may often he made 

 to fall in the angles or hy t!ie sides of Fields instead of the mid- 

 dle thereof, as too commonly happens. \Vhere it may be re- 

 quisite to open an air-pit in a Gentleman's Park or near his 

 House, the rubbish as fast as drawn, might be moved to some 

 near Pit or broken ground, or to a low place, ])reviously bared of 

 its top soil, to be re-spread on the rubl*ish as soon as levelled ; 

 and a ring of plantation made with cure, might almost imme- 

 diately or very soon protect and conceal the mouth of this Pit 

 from the cattle and the view of the House and grounds, unless a 

 tall chimney for drauglit, might prove necessary, fafter trying 

 to do without), in which case, any architect or ornamental gar- 

 dener of good taste, might easily design such an erection, .as 

 though not costly, might prove ornamental rather than other- 

 wise. 



Irr ordinary cases, coals sufficient for supplying the Fire-pan^ 

 occasionally necessary in the Air-pit, might be reserved near its 

 bottom, and worked and drawn here by two Men, who need re- 

 quire only a single path, to approach and enter the small ring 

 of plantation appropriated to their operations : and in ca^e of 

 safety Ladilcrs being provided in such a Pit, the ingress of the 

 Colliers to the reserved grounds, by this means, might be pre- 

 vented, by a tall fence and locked Gate within this ring of plan- 

 tation . 



In case of old Coal HoUom's standing full of water at the time 

 of putting down a vcw foundation, that is, sinking an Engine- 

 Pit more in the deep, on the same Coal, it is rarely advisable to 

 ever let this water do\vn to the new Engine, but a separate En- 

 gine should be erected on the old level, to continue to lift this 

 water to its outlet : a;id in case of the {uopcr place for such an 

 upper Engine, being now occupied by a Park or the near vicinity 

 of a House, &c. it frequently would I)e practicable, to choose a 

 situation not far distant, in some gullv l»y a Uoad, or l)ehind a 

 Hill or tall Grove, where a new P^ngiiic-Pit might be sunk, and a 

 level from its bottom be driven, to meet the old Coal-level at its 

 nearest point, and thus, without material annoyance to any one, 

 especially if the Engine fire burn its own Smoke, the okl accu- 

 mulations of Water might be gradually all raised, without unne- 

 cessary magnitude of Engines and Pumps, long before the new 

 Works could approach the old ones, so as possibly to incur similar 

 danger, to that of late years pending at Heaton, and as is still 

 doing at many scores of Collieries in Great Britain, particularly 



where 



