In his Stromata (VI. 18) Clement refers to a work on the origin of the world, which was probably to form a part of his work On Principles. This is perhaps the reference of which Eusebius is thinking when he says that Clement in the Stromata promises εἰς τὴν Γένεσιν ὑπομνηματιεῖσθειν. If so, Eusebius’ words, which imply that Clement promised to write a commentary on Genesis, are misleading.