Chapter XII
Reading edition
CHAPTER XII
AETHER AND COMETS
ART.111.WHAT IS A COMET? 291
" 112.ORBITS OF COMETS 293
" 113.KINDS OF COMETS 296
" 114.PARTS OF A COMET 298
" 115.CENTRIFUGAL FORCE AND COMETS 300
" 116.FORMATION OF TAILS 303
Reading edition
ART.111.WHAT IS A COMET? 291
" 112.ORBITS OF COMETS 293
" 113.KINDS OF COMETS 296
" 114.PARTS OF A COMET 298
" 115.CENTRIFUGAL FORCE AND COMETS 300
" 116.FORMATION OF TAILS 303