Boil the spinach and pass it through a fine colander. Beat up two eggs, add salt and pepper, and mix enough spinach into them to make them green. Put a little olive-oil into a frying-pan, and when it is thoroughly heated (but not boiling), pour a little of the egg, turning the pan about so that the pancake should be as thin as a piece of paper and dry. Toss if necessary. Take it out; repeat with the rest of the egg. Then take the pancakes, place them one on top of the other, and cut them into pieces the width of a finger and about two inches long. Fry them in butter, and grate a little Parmesan cheese over them. They make a very nice garnish.