Wall Bracket
Chair Clamp
Chair Attachment
with Upright
Choice may be made from any of the above. The Wall Bracket is recommended, unless refractionist is provided with a specialist’s chair, to which the Chair Attachment with Upright may be attached.
Transcriber’s Notes:
The illustrations have been moved so that they do not break up paragraphs and so that they are next to the text they illustrate.
Typographical and punctuation errors have been silently corrected.