i8o 



BOOK VI. 



A— Box B l.nWEK PART OF BOX. C—UpPER PART OF SAME. D— ClAMPS. E— PiPES 

 BELOW THE BOX. F— COLUMN PIPE FIXED ABOVE THE BOX. G— IrON AXLE. H— PlSTON- 



RODS. I— Washers to protect the bearings. K— Leathers. L— Eyes in the axle. 



M— Rods whose ends are weighted with lumps of lead. N— Crank. 



{This plate is unlettered in the first edition but corrected in those later.) 



