Influence of light on size of leaves

• Publisher: Elsevier Science
• Year: 1880
• Tongue: English
• Weight: 60 KB
• Volume: 110
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(80)90235-5

✦ Synopsis

Phosphorescent Lighting.--l)r. Phil)sOn take.~ sulphide ,)t' barium, or some other substance which is rendered t)hosl)horeseent by

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the solar rays, and encloses it in a ~elss]er tube, through which he passes a constant electric current ~,f'a feeble but regular intensity. He claims to obtain in this manner a uniform and agreeable light, at a cost lower than that of gas.--Zes Moudes. C.