per yard, according to density and mixture with stone : and the price of
cutting in mixed soils will vary from l^d. to 6d., according to the quan-
tity of pick- work and rock, and with respect, also, to the price of agri-
cultural labor. (See my tabular table of cost in Land Drainage and
Drainage Systems.)

" I should have thought it would have been quite worth the while
of the American Government to have had a farm of about 500 acres,
drained by English hands, under an experienced engineer, as a practi-
tical sample of English work, for the study of American agriculturists,
with every drain laid down on a plan, with the sizes of the pipes, and
all details of soil, and prices of labor and material, set forth.
'^ I am, dear Sir,

" Yours very faithfully,

"The Hon. H. F. Frbnch, Exeter. " J. BAILEY DENTON."



9*



203 V4XK DBJOVACMt



CHAPTEEIX.
THE COST OF TILES — TILS HAOHDTBS.
Prices far too high ; Albany Prices.— Length of Tiles. — Cost in Suffolk C(Kj
England. — ^Waller^B Machine. — ^Williams' Machine. — Ck>6t of Tiles compared
with Bric]cs.^Mr. Denton^s Estimate of Cost.— Other Estimates.— Two-
inch l^es can be Made as Cheaply as Bricks.-^Proce8S of Rolling Tiles.—
THe Machines— Descriptions of Daines'.— Pratt k Bro.*s.
