  | | | PAGE | | | Preface | v | | | | Report | 1 | | | Section 1.—The purpose which a lightning conductor is intended to serve | 1 | | | Section 2.—A statement of those features in the Construction and Erection of Lightning Conductors, respecting which there has been, or is, a difference of opinion, and the final decision of the Conference thereupon | 3 | | | | Points | 3 | | | Material for Conductor | 5 | | | Size of Rod | 6 | | | Shape of Rod (Rod, Tube, Tape, Rope, Plait) | 7 | | | Joints | 10 | | | Protection of Rod | 10 | | | Painting | 11 | | | Attachment to Buildings | 11 | | | Earth Plates | 11 | | | Space Protected | 12 | | | Height of Upper Terminal | 14 | | | Testing Conductors | 14 | | | Internal Masses of Metal | 15 | | | External Masses of Metal | 16 | | | Section 3.—Code of Rules for the Erection of Lightning Conductors | 16 | | | Appendices
| | | A.—Circular and Questions issued to Manufacturers, and their Replies | (1) | | | B.—Analysis of, and remarks upon, the views of the Manufacturers | (17) | | | C.—Reply from Manufacturers received after the completion of Appendix B. | (23) | | | D.—Report of the Representatives of the Royal Institute of British Architects | (27) | | | E.—Particulars of Accidents by Lightning, collected 1857–59, by Mr. Symons, and Report upon the same | (43) | | | F.—Abstracts of Printed Documents | (51) | | | G.—Catalogue of Works upon Lightning Conductors | (143) | | | H.—Application to, and Replies from, the Local Hon. Secretaries of the Society of Telegraph Engineers and other distinguished Foreign Authorities | (175) | | | I.—General Correspondence | (183) | | | J.—Data respecting the Sectional Area of Metal requisite for Lightning Conductors | (223) | | | K.—Notes respecting Lightning Conductors, collected in Paris in May, 1881, by Messrs. Preece and Symons | (225) | | | L.—On the Lightning Conductors at the Paris International Electrical Exhibition, by Messrs. Dymond and Symons | (229) |
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