Sending JH his Essays [Essays: Scientific, Political, and Speculative, 1857] and HS's 'Recent Astronomy and the Nebular Hypothesis,' the latter just published in the Westminster Review. Requests JH's comments on the latter publication.

Thanks HS for sending [see HS's 1859-1-10] HS's Essays and his 'Recent Astronomy and the Nebular Hypothesis.' Regarding the latter, points out a geometrical error, expresses reservations about HS's and Auguste Comte's views of the nebular hypothesis, and argues against HS's theory of sunspot structure. Agrees with HS's idea that some nebulae may be nearer than commonly thought.