[Responding to HS's 1859-12-31,] JH presents additional problems in the nebular hypothesis, critiques in detail HS's views of the distribution of cometary orbits, and argues against HS's theory of sunspot formation.

[Responding to JH's 1860}-1-12,] HS admits some of JH's objections to HS's views on distribution of cometary orbits, but attempts to salvage HS's cyclonic theory of sunspot formation.

Asks JH to become a subscriber to a work that HS is bringing out. Lists prominent persons who have already done so.

Thanks JH for agreeing [1860-3-17] to be a subscriber to HS's project and for JH's critique of HS's use of the term 'Absolute.' Admits that it has difficulties.