DIGITAL ARCHIVE of SLAVERY to FREEDOM at MONTICELLO   (beta)

XI. Mill.

at Brandywine, 2 pr of stones rent for 266⅔D.

100. bushels of wheat make 20. barr. flour at Brandywine & 22. in Maryland.

a millar’s wages at Brandywine from 100. to 150.D. & found.

a head millwright’s wages .86 cents, a journeyman’s .67 per day & found.

the millwright’s work of a mill of 2. pr stones, with boulting apparatus, fans, double wire screen, hopper boy, hoisting machine, screw packer, is worth from 200. to 267 Doll.

a pair of millstones manufacture 10,000 bush. in the season. Dutton.

where the mill-wright is found, & everything brought into place he should make a double armed waterwheel for 12/ the foot & the Cog-wheel for 15/ the foot in diameter, & the shaft & gudgeon supporters into the bargain: and a simple-armed waterwheel for 20/ the foot. Gordon.

in Blowing much depends on the nature of the stone. but in very hard stone, a man striking for himself will bore about 8. holes of 12I. depth a day. mr Cocke.
1.℔ of gun-powder will make about 20. charges. mr Cocke.
a man digs from 10. to 11. square cubic yards a day of canal work & throws it out. mr Cocke.

a cooper’s task is 4. flour barrels a day from the rough, i.e. from the stuff merely rived out into the thicknesses for 2. staves. and 6. barrels a day when the staves are drawn.

1810.	Nov. the batteau with 8 hands collecting rock for the dam on the mountain side about ½ a mile above the dam, brings about 6. loads a day of 2. perch each. = 12. perch a day
	a waggon collecting stone in the plantation from the E. side of the meadow branch brings 12 loads a day of ½ perch each = 6 perch a day. leaving having it’s driver & 2. of the nail boys to load & unload.
	12. hands get the long logs [. . .] (6 of 50.f. long) and tyers (21. of 16 to 20.f. long) for a pen 12.f. wide in the clear, 50.f. long & 3.f. high, bring them into place by water, and lay them down in 3. days.

	the cost then of a	pen 50. by 12.f. for the timberpart is		18.	D.
		the stone 70. perch @ 4/ =		46.	67
		about 1. 30 or 8/ a foot running measure		64.	67
		or 1.D. the cubic yard. of the dam.

1811.

June.

completed the new Pierhead. it’s floor is 9f [4½?] I. below the spring of the brick arch, and 10f 2I. below the crown of the arch.

1811.	Jany 8.	by an accurate trial with the spirit level, I found the surface of the water above the dam 6f ⅛I. higher than that at the mouth of the tail race of the sawmill.
1813.	Mar. 25.	fixed the bottom of the sawmill canal at 12I. below the breast of the dam by the spirit level.
1813.	June. July. Aug. Sep. blowing on the road at the foot of the mountain on the riverside, each borer uses ¼℔ powder a day and bores 3. holes of 12I. each. which is 12. blasts to the ℔

1822.	Aug 24. by experiment at the toll mill,	the Peak stones ground 4. bushels wheat an hour
		the Burr stones ground 4. bushels corn an hour
	both then may be said to grind 200. bushels in 24. hours. half wheat, half corn.