LIGHTING

1p, 4to. Bifolium. In good condition, lightly aged, with minor traces of glue from mount at head of reverse of second leaf, which is addressed, with broken seal in red wax, to 'Arthur West Esq | Beeching [i.e. modern-day 'Beechen'] Cliff | Bath.' The page is headed: 'The Police Establishment of Edinburgh consists of,' and the text is neatly written out in two columns. The first is headed 'In the Watching department', and contains twelve entries from '1 Superintendent' to '2 Female [Turnkeys]', including '30 Night Patrole men' and '166 night watchmen'.

On three pages of a foolscap bifolium, supplied by J. Warner & Co., Law Stationer of New Oxford Street, ruled and with red borders. Good, on lightly stained paper. On 25 July 1912 Mohr and Friedrich Hansen 'made an application for a Patent for an improvement in the process of the manufacture of a filament for an electric incandescent lamp (at present known as the "Boran Lamp") accompanied by a complete specification at the Patent Office', but the application has not yet been accepted.

Four pages, folio, chipped with small loss of text. IN FRENCH. He begins: "Les nombreuses experiences que j'ai fait sur la lumiere electriquee l'appareil que j'ai confectionne me mettant en meme de pouvoir l'appliquer a l'eclairage des villes avec avantage et economie sur tout autre systeme". He discusses the expense of gas and gives a precis of his plan ("L'agende"), giving letters which correspond to a "dessin" which is not present, and listing his points with a little detail: un ballon de gaz; filet ensoie; cordes en soie; Lampe electrique . .