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and Perry . (Journal Society of Telegraph Engineers. Vol. V., 1876, p. 412.)

       ON THE PROPER FORM OF LIGHTNING CONDUCTORS. By W. H. Preece , C.E. (British Association Report , 1880) .

       ÉTABLISSEMENT DE LA FORMULE RELATIVE AU RAYON D’ACTION DES PARATONNERRES. Par Emile Lacoine . (L’Electricité , October, 1880.)

       ON THE SPACE PROTECTED BY A LIGHTNING CONDUCTOR. By W. H. Preece , C.E. (Phil. Mag. , Dec., 1880.)

       SHORT ACCOUNT of the STRIKING BY LIGHTNING of the RAILWAY TERMINUS at ANTWERP, on the 10th of JULY, 1865. By M. Melsens , Member of the Royal Academy of Belgium.

       ON LIGHTNING PROTECTORS WITH POINTS, CONDUCTORS, and MULTIPLE EARTH CONNECTIONS, a detailed Description of the Lightning Protector erected on the Town Hall of Brussels in 1865, with an Account of the Principles adopted in the Construction, by M. Melsens, Member of the Royal Academy of Sciences of Belgium.

       DE L’APPLICATION du RHE-ÉLECTROMÈTRE aux PARATONNERRES DES TÉLÉGRAPHES. Par M. Melsens.

       TROISIÈME NOTE sur les PARATONNERRES. Par M. Melsens.

       QUATRIÈME NOTE sur les PARATONNERRES. Par M. Melsens.

       APPENDIX G. CATALOGUE OF WORKS UPON LIGHTNING CONDUCTORS, WITH A FEW UPON LIGHTNING, THUNDER, AND THE EFFECTS OF LIGHTNING STROKES, Chiefly extracted from the Ronald’s Catalogue , edited by Mr. Frost, but supplemented and brought down to 1880 by extracts from the Catalogues of R. ANDERSON, F.C.S.; LATIMER CLARK, C.E.; and G. J. SYMONS, F.R.S.

       OFFICIAL INSTRUCTIONS, FRANCE.

       ANONYMOUS.

       APPENDIX H. APPLICATION TO AND REPLIES FROM THE LOCAL HONORARY SECRETARIES OF THE SOCIETY OF TELEGRAPH ENGINEERS AND CERTAIN OTHER DISTINGUISHED FOREIGN AUTHORITIES.

       REGULATIONS for the Arrangement and Construction of Lightning Conductors for Military and Public Buildings in DENMARK, as adopted by the Royal Engineers, 1869.

       APPENDIX I. GENERAL CORRESPONDENCE.

       EDDYSTONE LIGHT.—REPORT of Professor Faraday on Electrical Phenomenon which occurred thereat on the 11th January, 1853 .

       ACCIDENT at BOOTHAM BAR, YORK, compiled from notes and measurements taken by J. Edmund Clark.

       APPENDIX J. DATA RESPECTING THE SECTIONAL AREA OF METAL REQUISITE FOR LIGHTNING CONDUCTORS.

       TABLE I.—LIST OF METALS MELTED.

       TABLE II.—REMARKS RESPECTING DIMENSIONS.

       DIMENSIONS OF LIGHTNING RODS—COPPER.

       APPENDIX K. NOTES respecting LIGHTNING CONDUCTORS, collected in PARIS in May, 1881, by Messrs. Preece & Symons.

       APPENDIX L. ON the LIGHTNING CONDUCTORS at the PARIS INTERNATIONAL ELECTRICAL EXHIBITION, by Messrs. Dymond and Symons.

       APPENDIX M. MISCELLANEOUS.

       MEANS to be adopted for ensuring PERSONAL SAFETY FROM THE EFFECTS OF LIGHTNING.

       INJURY to GAS AND WATER-PIPES by LIGHTNING.

       COLLIERY WORKINGS STRUCK BY LIGHTNING.

       ACCIDENTS by LIGHTNING at the SWAN COTTON MILL, CHADDERTON, OLDHAM. Report by J. Doherty, A.S.T.E.

       ESSAY on the effects of HEAVY DISCHARGES OF ATMOSPHERIC ELECTRICITY, as exemplified in the Storms of the Summer of 1846 * * * * and Remarks on the Use and Application of LIGHTNING CONDUCTORS. By E. Highton, Esq., C.E.

       THUNDERSTORMS.

       On the PROTECTION of BUILDINGS from LIGHTNING.

       Specification (No. 3925. September, 1880) of Samuel Vyle . LIGHTNING CONDUCTORS.

       On the PARTIAL PROTECTION of BUILDINGS.

       INDEX TO THE APPENDICES.

      ILLUSTRATIONS.

       Table of Contents

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PAGE
Sketch illustrative of terms employed face x
Sketch illustrative of area of protection 13
Plans and Elevation of Nottingham Castle (25) (26)
Tower of Church of Week St. Mary, Cornwall (32)