The subject will be dealt with in five parts. The first part will refer to the first raw material, viz., the mulberry and the silk-worm; the second part will deal with silk yarns; the third part, with commercial and industrial ques. Tions the fourth part, with weaving proper; and the fifth part, with the Tasar and Endi or Erz' silk industries. All the parts, however, will be treated from the point of view of the silk fabrics.