Corrections

• Chapter I
  • "sluffing" was changed to "sloughing"
  • "here and how" was changed to "here and now"
• Chapter II
  • "the fact it" was changed to "the fact is"
  • "patients visual acuity" was changed to "patient's visual acuity"
  • "the eyemen will then" was changed to "the eyeman will then"
• Chapter III
  • "help adult's" was changed to "help an adult's"
• Chapter IV
  • "power drugs" was changed to "powder drugs"
• Chapter V:
  • "Chapter X" was changed to "Chapter V"
  • "3/4" was inserted into to the "6 feet" line of "Chart I" (The original had "6 feet - 15/20 or times wrong")
• Chapter VI:
  • "Chapter XI" was changed to "Chapter VI"
• Chapter VIII
  • "plus 450" was changed to "plus 4.50"
  • "minus 4:50" was changed to "plus 4.50"
  • "they knew not" was changed to "they know not"
  • dash inserted between "eyes" and "no prism orthoptics"