3. Matters to which affidavits shall be confined.

(1) Affidavits shall be confined to such facts as the deponent is able of his own knowledge to prove, except on interlocutory applications, on which statements of his belief may be admitted, provided that the grounds thereof are stated.

(2) The costs of every affidavit which shall unnecessarily set forth matters of hearsay or argumentative matter, or copies of or extracts from document, shall (unless the Court otherwise directs) be paid by the party filing the same.

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