OCR Text |
Show J Sleep a Universal Necessity. The question where sleep begins is by no means easily answered. One is inclined to draw the line at the insects. in-sects. ' But since all living things, . plants as wo!! as animals, display pe riodical states of quiescence, perhaps s we shall be near the truth in regard- ing 'sleep as universal among livins; things. In the case of plants, it is snf breed by darkness, save in the case of many bacteria and fungi, which. 5k e evil deeds, grow under the cover f darknes3,. |