ADDITIONAL NOTES.

NoTE XII.---ELECTRICITY.

1. Points preferable to knobs for defence of buildings; why points emit the elettric fluid; diffuſion of oil on wa- ter; mountains are points on the earth's zlobe; do they Produce aſcending currents of air? 2. Fairy-rings ex- plained; advantage of paring and burning ground.

NoTz XIV,.--BuDBs AND BUuLBS.

A TREE 15 a ſwarm of individual plants; vegetables are either oviparous or Viviparous; are all annual pro- dutions like many Kinds of inſects; hybernacula; a new bark annually produced over the old one in trees and in ſome herbaceous plants, whence their roots ſeem end- bitten; all bulbous roots perilh annually; experiment on a tulip-root; both the leafſ-bulbs and the flower-bulbs are annually renewed,

NoT?r XYV.-SoLAR VOLCANOES.

THE ſpots in the ſun are cavities, ſome of them four thouſand miles deep and many times as broad; internal parts of the ſun are not in a ſtate of combuſtion; volca- noes viſible in the ſun; all the planets together are leſs than one ſix hundred and fifrieth patt of the ſun; planets were ejedted from the ſun by vo:7anoes; many reaſons ſhewing the probability of this hypothefis; Mr. Buffon's hypotheſis that planets were ſtruck off from the ſün by comets; why no new planets are eje&ed from the ſun; ſome comeits and the georgium ſidus may be of later date;

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