<draft>
Sarl, or Cottrell, /
With refce to yours …
allow me t. ask at what figure you have reckond the cost per ton of carrying the ore to Birmm from the canal, in makg yr Calcns?
<expanded version>
Sarl, or Cottrell,
With reference to yours … allow me to ask at what figure you have reckoned the cost per ton of carrying the ore to Birmingham from the canal, in making your calculations?