The necessary in each room should be a box with a hole in the top, and covered more over by a tight lid.1 behind it in the external wall should be an arch high & wide enough to draw out the ordure occasionally, which arch should be secured2 by a grated iron door. lime should almost daily be thrown into the feces to neutralise them.3

a solitary cell is proposed to put ill behaved prisoners into occasionally, as a punishment.

The best way of securing the floors of the Criminal apartments is with blocks of rough4 stone 2. or 3. feet long, set up an end, in as even,5 close & solid order as possible, the interstices then filled with grout and gravel, and the top made smooth with mortar & gravel for the floor, and, for further security as well as cleanliness lay the floor6 over with sheet iron, it’s edges lapped on one another and well7 riveted together.

A covering of tin costs 10.D. a square and will last for centuries. the cover of this building would be of 25. squares if of pediment pitch, to wit 10.f

suppose the foundation of the walls 3 f. the walls 9 f high.

let the outer walls be,	their foundation 3½ bricks thick
	their upper walls8 3 br. thick

the partition walls	their foundation 2½ bricks thick
	their upper walls 2 br. thick

the	outer walls	180 f. running measure
	inner do	154 f.

they will take 137,844 bricks.

the floors of the 4. criminal rooms at 2 f depth take 45. perch stone

	and 584. sq. f. of sheet iron	@ 18.D. pr sq. the iron.	105.	D.
	puttg on	@ 4.D	23.	369
			128.	36
	6. stoves open @ 15.D.