Nickel plating by boiling

✍ Scribed by C.

• Publisher: Elsevier Science
• Year: 1880
• Tongue: English
• Weight: 60 KB
• Volume: 110
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(80)90335-x

✦ Synopsis

417 ltrench

Lighthouses.--All the lighthouses on the French coast, .except three which are provided with the electric light, have been lit since 1873 with lamps burning mineral oil. The luminous intensity ,of the apparatus has been greatly increased, and notwithstanding the increase a saving has been effeeted of more than 400,000 francs ($80,000) per annum, or more than 30 per cent. of the cost of illumination with Colga oil. The use of the mineral oil has not caused a single accident in lighthouses, and after some trials it has also 1)ecn brought into use for floating lights.--L'Ingen. U~tiv.

C.