Smith 1999. Op. cit is contrasted with ibid., an abbreviation of the Latin adverb ibidem, meaning in the same place; in that very place which refers the reader to the title of the work in the preceding footnote. The easily confused idem (sometimes abbreviated id.
Just to be safe I would have to say leave it in a room temperature area; away from any windows or heaters that can affect the temperature of the egg; for about 6 or 7 hours at the least.
Egg whites add air and lightness, but they need to be whipped properly to add these properties. 1. Start with fresh eggs, at room temperature (a minimum of 30 minutes at room temp). Insider tip: To quickly bring refrigerated eggs to room temperature, place eggs in a bowl of warm (not hot!) water for about 10 minutes.