Can he recollect the origin of Table V in the Report of the Committee on Meteorology showing the elastic force of aqueous vapor? James Apjohn says JL calculated it but JL has no recollection. JL's mother is in a hopeless state.

Many years ago JH questioned him about the calculation of the perturbations in an inclined orbit, the satellites of Herschel [Uranus] for example. Has only recently seen the light. Is now confident that he can calculate the perturbations of any planet in any orbit. Gives details and would be glad of JH's comments.

Went to see J. C. Chase and Dr. Andrew Smith, and a meeting has been arranged at the Public Library tomorrow at 1 p.m. Smith had hoped to call on JH this morning, but was detained by the Governor.

Expresses JH's regret at not having been able to come to MF's experimental demonstration.

Scrope does not mention the depth to which the current has cut the granite in his memoir. In CL's revision can he quote JH on the pebbles?

Sends today the remainder of his astronomical chapter. JH's comments or corrections will be welcome.

Has been waiting for an opportunity to thank him for his communication. This letter will be delivered by Mr. H. Bell, son of an eminent chemical manufacturer.

Requesting JH to start a subscription list to relieve their penury.

Is grateful for his offer but unable to avail herself of it as she is leaving Salthill shortly.

Is flattered by receiving a copy of JH's interesting pamphlet. When he has read it will offer some of his own thoughts on the subject. Would be grateful for JH's comments.

Has recently received JM's letter and is pleased to find recognition of scientific merit. Welcomes his promised help. Does not feel justified in approaching Benjamin D'Urban on the subject.

There is no stated time for Willie's [JH's son] appearance at India House; any day suitable for him and Charles Pritchard will do. Suggests Wednesday next, the tenth, if suitable.

Has received the Wellingtonia seeds safely and they seem all right. Glad to hear that the Paulownias have grown so well. Still has two camellias. Sorry to hear a poor account of his health. Hears reports of John Herschel [JH's son]. Own son has been called to the Bar.

Comments and queries on various astronomical observations.

Received a note yesterday giving the news that the French fleet is contemplating an action against Jonathan. The comet showed itself last night, but not long enough to obtain an observation.

Mrs. Maclear's letter is not ready so it will have to travel by the Aerolite. Children have still escaped the measles.

Is not certain what has happened to JH's paper. Is on his way to London to try and clear up the mystery.

Please excuse the delay in replying to JH's letter. He has been busy opening churches and travelling. [Alexander] Strahan will write about the article.

Thanks for sending him the copy of the articles on meteorology; has been away from home grouse shooting. The day he arrived in Northumberland he saw a peculiar fan-like arrangement of clouds. Encloses a photograph of Louisa [RM's wife and JH's daughter].

Glad to send a good account of Louisa [RM's wife and JH's daughter] and her daughter.