page 8: 'whirpool'->'whirlpool'
page 14: 'rcommended'->'recommended'
page 42: 'envolopes'->'envelopes'
page 54: 'smoke-abosrbing'->'smoke-absorbing'
page 54: 'descovering'->'discovering'
page 60: 'quanties'->'quantities'
page 64: 'begining'->'beginning'
page 85: 'horripulation'->'horripilation'
page 85: 'celebacy'->'celibacy'
page 96: 'descibed'->'described'
page 99: 'nothern'->'northern'
page 123: 'clectric'->'electric'