Will not be able to come to town for some time so sends answers to JH's comments on his Circular Register. Hopes JH can call to see him; then he can explain more fully.

Thanks for JH's letter and for the references to meteors. The Austrian observations are important. Gives news of American observers and their work.

Apologizes for having been too busy to sit for a portrait as proposed, thanks HO for his poems, and describes JH's current experiments related to photography.

Confused by an 'unfixed' photo from JH in which the image shows different effects from different colors of the spectrum. Also other comments on photography.

Sends JH a positive copy and a transparency. Remarks on JH's use of muriate of lead and asks JH to explain chemistry of it.

[Two copies of] Printed letter from R.S.L. announcing proposed system for global magnetic observations. [One copy edited by JH for submission to "Your Highness" with] Request for assistance in adding magnetical observatory to John Caldecott's astronomical observatory in Travancore [India].

The report by G. B. Airy, Thomas Henderson, and JH on N. L. Lacaille's stars will be brought forth at the next meeting of the B.A.A.S. JP requests a copy in advance of the meeting.

A report by JH, George Peacock, William Whewell, and Humphrey Lloyd on magnetic observations will be read at the B.A.A.S. meeting in August.

Preparations for departure prevented JR from dining with JH at Slough. Working on pendulum with Edward Sabine. Thanks JH for sending gimbals.

Advises JH to have Foreign Office send letter to Col. Campbell, consul in Alexandria, to accompany R.S.L.'s letter to Pasha. Otherwise, R.S.L. letter may be ignored. Good news from [Duncan Stewart]. JS is not going to Scotland; may visit Slough instead.

Is willing to be a witness to some battery experiments by J. P. Gassiot, but JH is busy, mostly with house hunting, and so may not be available.

Declines an invitation to visit JH; comments on political situation in South Africa.

Is sending FA information about magnetic proceedings.

Describes method of suspending furniture in a ship such that the furniture is less influenced by the ship's motion.

Suggests JH include in his report a discussion of the 'dividing line of the positive and magnetic fluids' and 'separating line between the northern and southern intensities.' Presents C. F. Gauss's ideas on this topic. Suggests a trip plan for James Ross in order to obtain absolute measures of magnetic intensity on the globe.

Relays the opinions of a returning officer from St. Helena that a wooden building need not be built there.

Has presented the draft of the report to [T. R.] Robinson, [Charles] Wheatstone, and [J. F.] Daniell. Points out mistakes in the report. Remarks that the dipping needle has greatly improved over the years, thus increasing instrumental accuracy. Encloses Humphrey Lloyd's contribution to the report.

States he has received the list of instruments and their prices sent by JH.

Encloses a letter from Humphrey Lloyd. Anticipates Lloyd's arrival. Worries he will not be ready with the necessary forms before James Ross sets sail. Includes many calculations.

Reports that the ships to be used for James Ross's voyage will not be available for a week and that Humphrey Lloyd is busy preparing instructions. Proposes that the ships receive their own sets of instruments.