Note E — ADDITIONAL NOTES.

Now, if it should happen that the comparative levity of air consists in the repellant powers of its particles, and those bodies which have the greatest cohesion are most prone to gravitate, there “needs some conjuror to tell us,” what should hinder bodies of greater specific gravity from riddling down between those particles of air. No man but Dr Franklin could have caught the fugitive air under the shell of the first earth, and pressed it till it became heavier than gold by a hurly-burly of elements “mixed in confusion.”