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A-> Is a Copper with a Still-Head. 
By Is a Lead or Copper Pipe fixed to the Head of 
the Copper, thro’ which the Steam from the boil- 
ing Water heats : In its Palling thro' the eight 
Rooms the Pipe is fixed to the Wall or Side of 
the Room in the Place of the Chimney. 
CyCy Are Stop-Cocks, by which the Steam may be 
Buffered to pafs faft or flow, as you pleafe. 
V), Is the Vent for the Steam to pafs out at. 
Ey Is a Cittern of Water to replenifh the Copper 
as it boils away. 
11THEN your Ship’s Bottom is fo eaten by the 
** Worms, that fhe is no longer fit for Service, try 
the following Method - y •viz. Firft calk well the 
inftde Planks or Lining ; then fill the vacant Spaces 
between the Timbers, and the out and inftde Planks, 
with boiling Pitch or Refin, fo high as the main 
Gun Deck. 
The Pitch, being put in very hot, will run into 
every the fmalleft Cranny, and make the Ship as tight 
as a Bottle. By this the Ship is ballafted j there will 
be no Room left for Vermin, as Rats, &c. and the 
Pitch will ferve for other Ufes when taken out j 
therefore it will be but little Expence. 
VIII. 
