JDH hopes to be at Aden tomorrow. On arrival at Alexandria 4 Dec Ld Dalhousie insisted he belong to his suite in future. Left Alexandria on Sunday for Cairo. Travelled with Captain Henderson & officers using Transit Offices steamer along the Makmoudea [Mahmoudieh] Canal, discusses the canals construction & death of many Egyptians. Describes landscape, mentions Tamarix, Dates, Acacias, Cyprus & Myrtle. Switched to a pleasure packet steamer placed at their disposal by Mehmet Ali [Muhammad Ali]. Describes luxurious fittings in the part for Lord & Lady Dalhousie. The rest of them: including the Prime minister of Egypt, messed on deck in little cabins with simple facilities. Describes the Nile as about as broad as the Thames at Kew, mentions reading Bruce's and Salt's travels in the past. River banks are cliffs of mud showing successive layers of deposited soil to which Egypt owes its scanty vegetation. Saw lonely Arabs, Dromedary, tents, & donkeys. Beyond river banks wide spread uninhabited sand deserts. Irrigation attempted here & there, houses rare & always built near trees. Numerous boats such as figured in Bruce's journey. Describes first glimpse of the Pyramids & Cairo. Few miles before the town are Mehmet Ali's country gardens and Palaces of Shoobra [Shubra]. Thinks the Leicester Square Panorama gives an admirable idea of Cairo's location. During Cairo stay visited Ali Pasha's Rhoda Gardens but on the whole disappointed & outlines the difficulties of an exotic garden in Egypt. Mr Traill received him very cordially & showed him the gardens which JDH briefly describes. Letter continues Aden 19 Dec. Describes Aden as wonderful, bleak & barren. Dr M[?] has gone to Bombay for good & is now at Scinde [Sindh]. The bulbs JDH would have are not above ground & everything but Capparis, & a few other things are burnt up. He has sent Lord Auckland's parcel of seed onto Bombay [Mumbai].

Lord Auckland [George Eden] has asked JH to edit Admiralty Manual and proposed that WH write section on botany. Would WH do this and when could WH complete it?

JDH describes his journey toward Ceylon [Sri Lanka] via Egypt, Suez, Red Sea & Aden. Writes of his time Cairo & the agriculture, vegetation & landscape of the region, the only trees are date palms, Acacia lebbek & Sycamore figs. Enumerates species seen on visit to Rhoda Gardens with Mr Traill, discusses problems of having this garden on an island in the Nile & recommends WJH read Traill's account in GARDENERS' CHRONICLE. Also writes observations of: visit to Fojal Forest with officers of the Sidon; the Pyramids; Cairo Pass tombs visited with the Governor General; fossil forest in the limestone desert; vegetation outside Cairo, mainly Capparideae, Zygophyylleae, Rutaceae & Hyoscyamus; dining with the with Consul General, a brother of Capt. Murray RN. Describes transit from Aleaxandria to Suez at the Pasha agents' expense. Ld & Lady D travelled by Barouche, vans transported Dr Bell, Jane, Courtenay, Capt. Henderson & various servants on roads the Arabs are bribed to maintain, Colocynth [Citrullus colocynthis] the only plant. Describes views of Red Sea & Sinai & the sterile landscape around Suez. At Suez met Col Heaney & son, Matilda Rigby & husband. Sailed down Red Sea in the 'Moozuffer' under Captain Ethersley. Sargassum prevalent at about latitude 20, describes islands passed. Boatswain killed. Saw conferovid plant described by Montagne in the ANNALES TRICHOSEMINA RYTHREENA. Passed Mocha & Strait of Babel Mandeb before arriving at Aden. Discusses wind phenomena & saltiness of Red Sea. Describes Aden volcano as resembling St Helena but even more barren than Green Mt in Ascension. Shore wooded with Acacias, Dates, and Mangroves. G.G. wants reports on tea districts of India. Assam did not enter into JDH's calculations. Also includes a printed black and white illustration entitled: ADEN "THE GIBRALTAR OF THE RED SEA".