No summary available.
No summary available.
Sending some tables to show the relation between the mean distances of the primary and secondary planets.
Would be pleased if JH would come to the consecration of the new chapel in May.
Desires advice on construction of glass prisms for Newtonian reflecting telescopes. Also asks how to test the parabolic figure of a glass speculum before silvering.
Has discovered William Herschel's memoirs in R.A.S. library; arranged and read them. Asks JH whether any copies exist so the originals can be checked for completion before binding. Questions JH on William Herschel's opinion of the nature of nebulae and boundaries of the galaxy.
No summary available.
No summary available.
Commentary on manuscript [Personal Recollections?] that [MS] sent to JH one month ago. Career of scientific learning and domestic happiness will inspire future generations. Suggests publishing it posthumously for greater impact. Corrects passages about Charles Babbage. Gives purpose, history, and membership of each of two Standards committees, one of 1819 and one of 1838. Suggests avoiding topic of bitter controversy over invention of electric telegraph.
The Meteorological Committee of the R.S.L. is about to commence publishing the summary of the observation collected from the seven observatories. Would like JH's advice on method of publishing the barometric observations.
Suggests remedy for bronchitis problem in JH family. Young John Herschel's work on nebulae pleases CP. Comments on William Huggins's work on solar spectra.
Agrees with BS's objection against performing daily analyses of individual barometric pressure records. Believes monthly analyses of importance for observing laws of annual pressure.
Is fully satisfied with the objections in WM's letter regarding the individual records of barometric pressure. Gives advice on how the records should be shown.
Notices in letter of last May JH's postscript about the rate of color blindness occurring to overworked or ill artists, and doubts it becomes di-chromic, but merely a 'weakness' of vision.
Thanks JH for the memoirs he sent to CP, who will reciprocate with some of his own.
No summary available.
Has made the changes JH suggested. Autobiography will be published posthumously. Met [Henry W.] Longfellow. Wishes the Herschels would visit because it might improve JH's health.
Consulted A. C. L. G. Günther, museum ichthyologist. Answers JH's question about poisonous herring Clupea thryssa. [A. K.] Johnston's Physical Atlas attributes Ruminants article to GW, but GW wrote only Rodentia article.
It was a great pleasure to receive JH's letter. Sees that he still remembers the day at Portsmouth. Hopes to collect and publish her father's letters and now returns those written to JH.
Comments on the radiant heat of heavenly bodies and the motion of Sirius.
Extensive discussion of comparative anatomy, taxonomy, and distribution of rodents. Encourages JH to use term Hystricidae for porcupines in JH's [Physical Geography (1861)].