It will be proper to lubricate the knife with kerosene after the first mark is made.
Lubricate the two stop-cocks with resin ointment (Fig. 137).
The next operation after moulding the bullets is to lubricate them.
In medicine, substances which are calculated to soften and lubricate the parts to which they are applied.
With silon covering to lubricate the cut, there's nothing ...