ocr: 4.4.5. Alter counlless repetitions, the originalinterval af scction as expanded, folded, and rerurned inl countless layers. These aecumulate in a centain pactern. To cxaminç this partern, we cul again in a D Cr055-section. Thin oue, which we call the Lornz sectton, cutb through the PoincHre section.