70 



sending nearly twenty of these skilful ope- 

 rators into various parts of Wales and Scot- 

 land, as well as England, and hope to re- 

 ceive further commissions for this purpose. 



P. 65, Mr. B. says, " The more sur- 

 ** face there is in the panes, the more 

 *' water is required to flood them ;" and 

 again, p. 25 and J 5, " the width of the 

 " trenches that convey the water varies 

 " according to the breadth of the panes." 



By pane, Mr. B. means, what I have 

 called a bed, and by trench, a floating- 

 gutter. If he will re-consider the above 

 assertions, he Avill immediately discover, 

 that the breadth of the pane, or bed, by 

 no means determines the width of the 

 trench or gutter, or the quantity of water 

 that is required ; for a bed of only one 

 foot width will consume as much water as 



a bed 



