ERRATA.

Page16,line17,for fig. read plate.
„22,„4,for posistion, read position.
„22,„7,for 17, read 15.
„22,„9,for fig. read plate.
„22,„23,for fig. read plate.
„24,„16,for clylinder at P, read cylinder at K.
„24,„22,for fig. read plate.
„26,„16,for E, read C.
„28,„5,for diamenter, read diameters.
„35,„10,for inconvencies, read inconveniences.
„36,„8,for of pulley, read of the pulley.
„40,„25,for as, read of.
„41,„4,for loose 1; read loose —
„41,„5,for pulleys, read pulley.
„43,„18,for furnish surplus, read furnish a surplus.
„43,„22,for occpied, read occupied.
„46,„17,for power, read motion.
„49,„22,for diffential, read differential.
„55,„21, -for 20,200, read 20200.
„55,„24,
„55,„26,
„55,„28,for 99,990, read ,99990.
„58,„23,for figures, read figure.
„62,„2,end the quotation marks at “lifting.”
„62,„8,for gasping, read anxious.
„63,„7,for wishd, read wished.
„64,„2,for ladders, read ladder.
„66,„11,for occasionaly, read occasionally.
„67,„7,for G N, read L N.
„68,„2,for two hundred, read three hundred.
„75,„4,for 300℔s. read 100℔s.
„82,„16,for fig. 9, read fig. 10.
„83,„11,for an of inch, read of an inch.