efektive

), I doubt whether there is a more beautiful sight (227, b) than the sunset. 6. It is made by the bright rays of the sun, which shine back through the atmosphere, long after the sun itself has passed below the horizon. 7. The more moisture (

malsekaĵo

) there is in the air, the more brilliant the colors are, and the more beautiful the entire landscape becomes. 8. In tropical lands, night falls very suddenly, and there is almost no sort of twilight. 9. In fact, a twilight scarcely occurs there. 10. In the lands far north, on the contrary, the twilight lasts six months, and the remainder of the year is the day. 11. To dwell in such a land is surely a remarkable experience. 12. It can in no way be understood by persons who have never lived there. 13. Such things increase (make greater) my desire to visit those northern lands. 14. For no reason, however, do I wish to reside in the tropical countries.

LESSON L.

THE PRONOUNS ENDING IN -O.

233. In contrast to the pronouns ending in -u (tiu, kiu, ĉiu, iu, neniu), a similar series ending in -o refers to an object, fact or action not definitely specified (but never to a person), like English what, anything, something, nothing, etc. Because of their somewhat vague meaning, these pronouns do not occur in the plural, nor are they ever used as pronominal adjectives:

Demonstrative: tio, that (thing, fact or action).
ĉi tio, this (thing, fact or action).
Interrogative and Relative: kio, what.
Distributive: ĉio, everything.
ĉio ĉi, all this.