Sends a proof title page and asks RO to send a list of plates and contents [of Fossil mammalia] to the printer, Mr Stewart.
Sends a proof title page and asks RO to send a list of plates and contents [of Fossil mammalia] to the printer, Mr Stewart.
No summary available.
Needs the name of the print seller from whom JH's cousin bought the copy of the print of JH's portrait, so RS can learn how many copies are available. RS will then know whether to 'treat with [the printer] as an honest man or a rogue.'
JH concerned not so much that a few copies of the print of JH's portrait may have been sold, but that the plate itself may have been stolen and sold. Seems relieved to know that the plate was left with the printer, not the engraver. Asks RS to make an inquiry with the printer.
No summary available.
Outlines theory behind and method for preparing thermographic paper, which allows observers to determine 'what share each ray of the spectrum bears in producing the observed total effects.'
Tells WT about JH developing the thermographic paper which is susceptible to 'calorific' and 'chemical' rays of light.
Sends enclosure to JH. [Humphrey] Lloyd also has a copy and Lloyd will send comments directly to JH.
Is the R.A.S. to send an address to the Queen? The diploma is ready for the King of Denmark.
No summary available.
Writing on behalf of John Russell, sends JH a letter to Francis Tudhope regarding the offer to Tudhope of a position teaching in the Government Schools at the Cape of Good Hope.
Writing on behalf of John Russell, informs JH that Francis Tudhope has accepted the offer of a position teaching in the Government Schools at the Cape of Good Hope. Mentions the travel arrangements for Tudhope and for the other teachers hired.
Has just seen JH's communication in the P.M. regarding an improvement to a lamp. Points out that the late Charles Seward obtained a patent for this improvement some thirty years ago.
Asks JH's opinion on a candidate for a committee position.
Regarding an address to the Queen. Hopes to see him on Thursday.
No summary available.
No summary available.
No summary available.
Would like to know the degree of sensibility to heat of JH's paper. The paper of W. H. F. Talbot is useless for his purpose as only violet heat affects it. Did JH use a flint glass prism for his spectrum experiments? Has he ever used photography to show the impression of polarization and diffraction?
Comments on several different reports; also on some experiments that lead JH to think much of the radiant energy of the Sun is absorbed in the atmosphere.