668 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Forrest J. – vol.XC) London (1887); (1512) Q.I.17
669 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Forrest J. – vol.XCI) London (1888); (1513) Q.I.18
670 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Forrest J. – vol.XCII) London (1888); (1514) Q.I.19
671 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Forrest J. – vol.XCIII) London (1888); (1515) Q.I.20
672 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Forrest J. – vol.XCIV) London (1888); (1516) Q.I.21
673 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Forrest J. – vol.XCV) London (1889); (1517) Q.I.22
674 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Forrest J. – vol.XCVI) London (1889); (1518) Q.I.23
675 A.A.V.V. Minutes of proceedings of the institution of civil Engineers(Forrest J. – vol.XCVII) London (1889); (1519) Q.I.24
