Is grateful for his note and the book; has been ill, which accounts for the delay in his acknowledgement. The verses appear to give a good idea of the original.

Has received a request from the Admiralty to order a new telescope for the Cape observatory; at the same time, JH has received an unsolicited offer of a lens. JH seeks advice and information from GA.

Has been reading JH's communication to the P.M. [on solar spectrum] and wishes to point out that RH was the first to carry out those experiments, which are recounted in the P.M. for 1840.

Sends some specimens of photographs he has made by using bichromate of potash and an acid solution of nitrate of mercury. Gives details of a luminous phenomena he has seen in the S.W. and would like an explanation of it from JH.

Enlarging on the luminous phenomena he has seen in the S.W. and giving some comments from a naval officer who had observed it.

Is grateful for the very interesting photograph; will keep the preparation secret if he discovers it. Has been trying many experiments with benzoates with curious results, but bad weather has stopped progress so has now turned to thermography to test the truth of Mr. Prater's conclusions. Comments on these.

Both JH and his wife, Margaret, are very concerned about the health of Madame Gerlach, the aunt of NS. Details are provided.

Enclosing the specimens of photographs by different methods; comments on the methods used. Encloses a paper by Were Fox.

Enclosing specimens of his chromatype; comments on how these were produced and their characteristics. Is very busy with the Annual Exhibition of the Polytechnic Society.

Has received from the P.M. proof of an article replying to the attack of [L. F.] Moser on RH, also details of a new instrument by J. W. Draper. Would like JH's opinion on the instrument. Has had some good results with the fluorates recently.

Would like his views on a name for the combination of hydrogen and chlorine. Comments on the various theories. Has replied to [L. F.] Moser.

A letter of even greater urgency about the very serious state of health of Madame Gerlach, the aunt of NS [see JH's 1843-10-20]. Madame Gerlach is living with the Herschels [as tutor? or governess?].

As JH has not heard from NS, he has arranged for Madame Gerlach to stay with Mrs. Mason, now living in part of JH's former residence at Slough. But under no circumstances can Madame Gerlach return to her duties with JH's family.

Has just received the news that Hartnell's son has passed the exams at Trinity College, Cambridge.

Sending a copy of the English Universities. Has quoted JH in the third volume. Hopes that university reform will be a popular topic.

Is pleased JH has such a high opinion of the new work on the English universities; it has hardly been noticed by the public. V. A. Huber belongs to the Conservative party but tries to be impartial as a historian. Hopes that the amount of reading at universities will be reduced.

Returns with many thanks E. C. Hawtrey's translations from Homer and Kallinos. Both are beautifully done. Comments on these and the meters suitable for English ears.

Is much obliged for letter and pretty specimen of English hexameters. Is sad that there has been no success with the classical hexameter in our language. Comments on its use.

Sending some pages from the Mechanics Magazine containing details of clock escapements, superior to those at present in use.

Will find one friend at the R.S.L. Club dinner next Thursday.