( 4) ) 
the water through the head or bank. This mnft be done at 
the deepeft part of the ground, which probably will fall in 
the center of the bank. This will employ two pair of tumbrels 
and four labourers, for digging and fetching of clay, befides 
four labourers to ram it, which muft be, as was faid, very well 
done. And the carpenter, who beforehand hath fitted his 
work, muft attend alfo one whole day to help in the laying it 
down, and to fee it well rammed. 
The next day’s work may be the employment of two pair 
of tumbrels in fetching of clay, and four or five good labourers 
to ram the foundation of the bed of clay. And I fuppofe this 
may rife a foot in one whole day’s work, more or lefs, as the 
length of the head is. Clay rifeth ftiff, and for that, if it 
rifeth near, as in the pan of the pond, three labourers to a pair 
of tumbrels, are requifite to dig and fill, otherwife the 
horfes will be idle, and want work as well as the rammers. 
The day after employ four pair of tumbrels more, to fetch 
earth out of the pan of the pond to lay along the bank on each 
fide of the bed of clay, the whole length of the head ; and 
to this work, two labourers for a pair of tumbrels are enough. 
Here you muft lay on fix labourers at leaft, to ram the bed 
of clay, and {pread earth upon the bank, fo that it may be 
done‘as faft as the fix tumbrels fupply it; and by this means 
the bank and bed of clay will mfe together. 
Thus you proceed till the bank is finifhed, which will rife 
fafter as you come nearer the top, and fo will fomewhat alter 
the employment of the tumbrels and men, which you muft 
conform in proportion accordingly. And obferving thefe 
directions, 
