The Collaborative International Dictionary of English v.0.48:

Formulary \For"mu*la*ry\, n.; pl. Formularies. [Cf. F.
   formulaire.]
   1. A book containing stated and prescribed forms, as of
      oaths, declarations, prayers, medical formula[ae], etc.; a
      book of precedents.
      [1913 Webster]

   2. Prescribed form or model; formula.
      [1913 Webster]