to convey them to Tea behind Cooper's Iflc# 

 ia a place where mounds of fand and gravei 

 could occafion no obftru^tion* 



Thisj without doubt, was the moft argent 

 part of the operation. The clearing of the 

 harbour, or rather channel, might be after- 

 wards effeded without any obftacle, in a 

 period of time proportioned to the number 

 of machines deftined for the purpofe of 

 taking up the mud and fand ; for it is well 

 known that each machine clears almoft to 

 the depth of twenty feet a day, when the 

 wheels which make the two ladles adl ane 

 worked by thirty-fix men. 



Mr. Tromelin did not confine his plan 

 to that labour which was neceffary for clear- 

 ing the channel, and preventing it from 

 being choked up in future. This officer had 

 greater and more extcnfive views. He 

 remarked that the channel communicated 

 with a vaft bafin perfedly flieltered from 



the 



