No. 18, p. 12: The article beginning on this page was entitled "Italian Variable-Pressure Mine." It is
now reported that this is a Hungarian mine; at least some of these are manufactured for the Axis
No. 19. p. 44: In sub-paragraph (1), it was stated, with reference to signal security, that "the
enemy found it impossible to predict a certain attack from an examination of requests for
supplies." The word "impossible" should read "possible."