565. (10.) Are they concentric with each other and with this globe?

_Ans._ Yes.

566. (11.) At what distance from the terrestrial surface does the lower

boundary of the second sphere, or first spiritual abode, commence?

_Ans._ Sixty miles.

567. (12.) Are the atmospheres of the spheres more rare in proportion

as they are more elevated?

_Ans._ Yes.