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Freemasonry and its etiquette

Chapter 21

XII. It shall be in the power of the Grand

Master, or in his absence of the Past Grand Masters, or in their absence of the Deputy Grand Master, or in his absence of the Past Deputy Grand Masters, or in their absence of the Grand Wardens, to summon and hold Grand Lodges of Emergency whenever the good of the Craft shall, in their judgment, require the same.