In the immense and vast global biosphere, there exists a kind of noteless melanocratic organic matter which is humic substances.

在浩瀚广袤的地球生物圈里，蕴藏着一种不引人注目的暗色有机物，这就是腐植酸类物质。

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Some noteless Gaelic poet had made this into a forgotten ballad, some odd verses of which my white-capped friend remembered and sang for me.

有位无名的盖尔诗人将这故事编成歌谣，但业已失传，不过戴白帽的朋友还记得零碎的几句，还曾念给我听。

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