Thanks for information about variability in shells.

Comments on Harvey’s Seaside book [1849].

"I am growing as bad as the worst about species and hardly have a vestige of belief in the permanence of species left in me".

Multiple creations.

Necessity for crossing in plants and animals: JDH to take up the subject; explains separate sexes in trees.

Continental extensions.

CD’s predicament with continental extensions: they would remove argument for multiple creations, yet he opposes the doctrine. Lyell will not express an opinion on this.

Lyell fears mutability would lead to more specific names.

Encloses copy of letters to Lyell [1910 and 1917].

Tristan da Cunha flora.

Aquatic plants.

Density and diversity of plants in small plots in Kent, Keeling Islands, and Himalayas.

No summary available.

Will give him great pleasure to call at Collingwood in the near future. Grieved to hear of JH's illness. Begs acceptance of a set of papers of Dr. William Griffith.

Recently came across some instructions JH had drawn up for persons who are color blind. Sends a note explaining the work of William Pole on this same subject. Has left the manufactory at Ipswich.

Deposit enclosed money at Cadet House for John Herschel's readmission [to Addiscombe].

Comments on GS's ideas [see GS's 1856-6-27] about the nature of fluorescence. Asks for strong horseshoe magnets from R.S.L. to try to solve the problem of 'Mahomet's coffin.'

Further thoughts [see GS's 1856-6-27] on the nature of fluorescence, including that it is a transient phosphorescence.

Continues comments on fluorescence from letter of 1856-7-8; then shows mathematically that JH's solution for the problem of Mahomet's coffin [see GS's 1856-7-1] will not work.

Thanks for the magnetic theory [see GS's 1856-7-9] and agrees it argues against JH's ideas about Mahomet's coffin. Describes some interesting magnetic experiments JH has seen.

Comments on one of the magnetism experiments JH described in his letter of 1856-7-14.

Claims himself perfect case of di-chromic vision, only seeing blue and yellow. Gave paper on his condition to R.S.L., quoting and supporting JH's theory. Hears JH is ill, or would send letter directly to JH.

Thanks for papers on diamagnetism and lecture on 'slaty cleavage.' Compares with phenomenon of 'ringing coins' in mint. Explains with examples conformity of JT's views with JH's own on geological stratification. Praises simplicity yet completeness of JT's work.

Clarifies letter on motion and structure modification of glaciers. JH thinks glacier ice unfavorable for exhibiting JT's phenomenon [see JT's 1856-7-30].

Agrees with and asks permission to publish JH's letter in the Philosophical Magazine. Is going to Switzerland and Tyrol, where hopes to see phenomenon of glacial descent [see JH's 1856-7-31].

Sends copy of Admiralty Manual, which includes JH article on meteorology. Asks TM what to do with Bokkeveld meteorite specimen still in his possession.

Is grateful for JH's remembrances and sympathy in his affliction [death of his sister]

Death of his sister a blow to John Bullar [father of writer].