802 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Tudsbery J.H.T. – vol.CCXXVII) London (1929); (1635) R.II.24
803 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Tudsbery J.H.T. – vol.CCXXVIII) London (1930); (1636) R.II.25
804 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Tudsbery J.H.T. – vol.CCXXIX) London (1930); (1637) R.II.26
805 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Tudsbery J.H.T. – vol.CCXXXI) London (1931); (1638) R.II.27
