. The literary digest. e as brittle as glass, while copper andplatinum were not affected in this way. Mer-cury was frozen so that it was used to drive anail in a board. Cotton saturated with theliquid oxygen exploded and burned phenomena and others exhibited toonumerous to be rehearsed here suggest greatpossibilities of usefulness for liquid air in thefuture. to ,000,000 and for the ultra-violet to 764,000,000,000. . .The red rays of the solar spectrum are also the chief heat-giv-ing rays, and they are sometimes called specially the calorificrays, while the violet and
. The literary digest. e as brittle as glass, while copper andplatinum were not affected in this way. Mer-cury was frozen so that it was used to drive anail in a board. Cotton saturated with theliquid oxygen exploded and burned phenomena and others exhibited toonumerous to be rehearsed here suggest greatpossibilities of usefulness for liquid air in thefuture. to ,000,000 and for the ultra-violet to 764,000,000,000. . .The red rays of the solar spectrum are also the chief heat-giv-ing rays, and they are sometimes called specially the calorificrays, while the violet and ultra-violetrays, known as the chemical or actinicrays, have a noteworthy influence onchemical substances, such as those onthe sensitive plates used in photogra-phy. But nowhere can this specialchemical influence be better seen thanin the growth of plants—the vegeta-tive process The learned Camille Flammarion,who, besides his well-known astronomicalwork, has also addedsome interesting facts toour knowledge of plant. Blue. Green. White. Red. INFLUENCE OF COLORED LIGHT ON PLANTS {Strobilanthes Dycrianus). biology, . . has recently undertaken some interesting investi-gations on the influence of the suns rays on the colors of plants. To answer the question: Which rays of the spectrum havathe greatest effect on plant growth ? Flammarion threw on ths
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1890
