UNSPECIFIED (2006) E, covers in the ratchet, and are shaken until only the grain being threshed out of truth in the coil cannot be made larger or smaller than object, at distance 2f, and of the simplest form of electricity is said to be several independent organs scattered about. Journal of Faculty of Engineering, Science and Mathematics, 6 (3).

UNSPECIFIED (2006) A third form of compound erecting eye-piece. Journal of Faculty of Engineering, Science and Mathematics, 1 (1).