The Collaborative International Dictionary of English v.0.48:

Ourselves \Our*selves"\, pron.; sing. Ourself (?).
   An emphasized form of the pronoun of the first person plural;
   -- used as a subject, usually with we; also, alone in the
   predicate, in the nominative or the objective case.
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         We ourselves might distinctly number in words a great
         deal further then we usually do.         --Locke.
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         Safe in ourselves, while on ourselves we stand.
                                                  --Dryden.
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   Note: The form ourself is used only in the regal or formal
         style after we or us, denoting a single person.
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               Unless we would denude ourself of all force.
                                                  --Clarendon.
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The Collaborative International Dictionary of English v.0.48:

Myself \My*self"\, pron.; pl. Ourselves.
   I or me in person; -- used for emphasis, my own self or
   person; as I myself will do it; I have done it myself; --
   used also instead of me, as the object of the first person of
   a reflexive verb, without emphasis; as, I will defend myself.
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