Add the sugar to the whites. Have ready a hard-wood board which fits the oven. Wet the top well with boiling water, and cover it with sheets of letter-paper. Drop the meringue mixture on this in large spoonfuls, and set in a very slow oven. The secret of a good meringue is to dry, not bake; and they should be in the oven at least half an hour. Take them out when dry. Slip a thin, sharp knife under each one, and put two together; or scoop out the soft part very carefully, and fill with a little jelly or with whipped cream.