Has found the plan of Sussex very useful on his travels. Comments on Brighton. Has seen his aunt and uncle. Has had no chance of visiting Clapham and so unable to send his sketch.
CD discusses questions about his coral reef theory that were raised by HTDlaB [in his Geol. Soc. Anniversary Address (1848)].
No summary available.
Some geologists (especially H. T. De la Beche) doubt boulders have really been carried above their parent rock, but rather thought they were left behind as a result of denudation. Asks JP’s view of this, which he can quote. Supposes he will be well abused for his paper, but is resolved "not to show a white feather".
Asks ACR to establish height of Moel Tryfan in Caernarvonshire; "in my notice on this hill [""Ancient glaciers of Caernarvonshire"" (1842), Collected papers 1: 163–71] I give a very much less height than others". [See also another mention of the elevation of Moel Tryfan in "On the transportal of erratic boulders" (1848), Collected papers 1: 218–27.]
JDH summarises the collection he has sent home. Now in Rajmahal Hills amongst Ferns, Orchids & Hoyas. In winter he will return to Rajmahal & Parasnath for Cryptogamia & animals. He has boxes of Patna wood for the Kew museum & will get more items. JDH met Dr Gordon at Mirzapore, Fred Thomson at Benare & Wallace, Trench & others at Ghazeepore, where he saw rose garden & manufacture of rose water & Attar. At Dinapore [Danapur] missed Captain Hemchman but met Captain Doria. At Patna stayed with Irvine who went with WJH to Slaffa & collected Fucus balticus; visited the opium factory & got a set of their tools; met a son of Admiral Beaufort & through him heard of Mrs L.P. Wilson’s death. In India JDH is known from James Clark Ross's account of their voyage. Thanked Lord Dalhousie for appointing Gurney. At Morghyr he & Dr Hastings visited hot springs where they worship the Confervae, could not collect them as at Sarroukbund. At Bhungalpore [Bhagalpur] staying with Grant & Raikes, has met Clergyman Vaux & written account of Major Napleton's horticultural garden for JOURNAL OF BOTANY, the curator is named Ross. Mr Pontel cultivates flowers & has given JDH a bamboo & Bauhinia bark bow with reed arrows. JDH will return for mineral & fossil woods for Henry de la Beche. Will travel via Purnah & Titalyah. Enumerates his expenses. He has recommended the Governor protect timber trees like Walnut & Sal. Mentions poor state of materia medica & science in India. Writing from Colgong [Kahalgaon] 8 Apr adds he met Mr Alexander & is staying at an Indigo planter's house overlooking the Ganges & a landscape of Casuarina, mango groves, Tamarind milia, Ficus religiosa or 'Peepul', Borassus, Phoenix, sand flats & distant Himalayas. He anticipates luxuriant flora at Darjeeling. JDH prefers up-country India to Calcutta [Kolkata]. Mentions Thomas Thomson, Vicary, MacIvor in Madras [Chennai], Brewster's article in the N. BRITISH REVIEW, Lord Morpeth, Mr Phillippe, Lord Auckland, Lawrence Peel.