The identity of X-ray photographs of plastically deformed annealed and unannealed crystals indicates that elastic changes in the orientation of neighboring sections of a plastically deformed unannealed crystal play an insignificant role in the formation of tails on the photographs. The investigation of the nature of rotation led to a detailed study of tails on X-ray photographs, since the reorientation of individual sites in a deformed crystal is most reliably established by means of X-ray photographs. From a crystal whose lattice is distorted, X-ray photographs with blurred and split spots are obtained, and asterisms and bridges between bright spots appear.