Farm Book, page 105
by Thomas Jefferson


Lime.
a bushel of limestone weighs 114. lb & makes 2. bushels of slacked lime.

by a tolerably exact trial 1. hhd. of unslacked limestone made 1 1/2 hhd. of slacked lime, want
-ing about 1/2 bushel. and 15 1/2 bushels of slacked lime laid 1000. bricks in a wall of
1 1/2 brick thick. we may say then that 10. bush. of limestone are required to 1000. bricks.
it takes a bushel of lime to give 3. coats of plaister to 4.square yards on brick wall.
a cord of limestone of 128 cub. feet or 102 1/2 bushels make 6. waggon loads
Fresco painting. Schneider charges a dollar a yard, he finding paint etc.
or 8/. dollars a day, paint etc, found him. he can do half
a yard an hour.
the cost of iron pipes at Philada. is as follows. 22. I. diam. is 6.25 pr. foot. -- 20 cost 5.
16.I. diam. cost 3 1/3 - 10 = 2.40 - 8 = 1 2/3 - 6 = 1.10 - 4 = .64 - 3 = .45 - 1 1/2 = .40.
Sheet iron, a square foot weighs 1. to 1.1/2 lb & costs 20. cents.
Sheet copper. costs about 40. cents the square foot
Philadelphia.
1792.

the largest sheet iron I have seen is 21. I. by 8.f.3. I.
a box of tin contains 220 or 230 sheets 13 1/4 I. by 10 1/8 =11/12 of a foot and weighs 152. lb
it costs 13. D. and will cover 1 square & a half of roof.
a man put on a square a day.
.cents
Bohemian glass costs of the least thickness. .16 the square foot Donath. Phi
-ladelphia.
1792.
1 1/2 thickness .20
double thickness for coaches .30
a workman at Genoa to whom I shewed a draught of my chimney pieces, gave me the following estimate of what they would cost in the different kinds of marble of which he gave me samples.
price of
the cubic
foot of marble
archi-
trave alone
archi-
trave &
entrablat.
but if only a
plain fascia
6. I. wide 1.I. thick
H s H H H s
Common marble 4 - 10 90 170 2 - 1 +
Marble of Carrara 12- 105 217 - 10 5 - 11 +
Jasper of Sicily 40- 161 400 18 - 8 +
Verde Cantico 270- 620 1900 124 - 4 +