Lists works JH should have received. Asks JH to take another look in his library. Has received more on meteors. Sees no objection to a higher terrestrial atmosphere. Will send Histoire des sciences mathématique et physique chez les belges.

Lists works sent to JH. Discusses hypothesis concerning meteors and the atmosphere. Mentions his work 'Sur la physique du globe.' Cites Mr. Bravais. Attaches note sent to AQ by Royal Academy of Brussels, listing works JH should have received. Encloses list of errata for the Bulletin de l'académie royale de belgique, ser. 2, 15, No. 6.

Sends JH other copies of works not received. Also work on international statistics. Has found out that JH has written an article on probability. Would like to use it.

Notes for a letter to JH and son. Intends to discuss the 'phenomenon of October 1854.' Will continue observation of proper motion of stars. Will mention 'savants' who disagree and who agree with his opinions. Means to request that JH continue corresponding.

Was in Paris when JH's letter arrived. Will print JH's article. Asks if there are changes to be made. Discusses future project Physique sociale, which will include theory of probability applied to ethics and political science.