In 1843 the University of Oxford conferred upon him the honorary degree of D.C.L., and in the same year he published the second edition of his 'Introdnction to Chemical Philosophy.' For more than thirty years he was a zealous and active member of the Royal Society, and for the lad six years he held the honourable of of foreign secretary to that learned body. Besides Lis professorship in King's College, he held the poet of lecturer to the East India Company's military seminary at Addiscombe, and was examiner iu chemistry to the University of London since the opening of that institution.
On the 13th of March 1845 Mr. Daniell, while attending a meeting of the council of the Royal Society, and having just spoken on a point under consideration, apparently in perfect. health, was seized with an apoplectic fit. In five minutes from the commencement of the attack he was dead. A eubsoription was formed at King's College for the purpose of having a bust executed, and for the establishment, in connection with the college, of a Daniell Scholarship in the science of which he was so distinguished an ornament.
It is worthy of remark, as illustrating the extent and diversity of his attainments, and the importance of his discoveries, that he is the only individual on whom all the three medals in the gift of the Royal Society were ever bestowed. The following is a list of his most important essays, with their dates :-1810, 'On some Phenomena attending the process of solution,' in ' Quarterly Journal of Science,' voL I. 1817, ' On the mechanical structure of iron, developed by solution, and on the combination of eilex iu casteiron,' ditto, voL 1818, ' Observations ou the theory of spherical atoms, and the relation which it bears to the forms of certain minerals,' ditto, voL iv. 1818, • On the strata of a remarkable chalk found in the vicinity of "frighten and Nottingham,' ditto, vol. iv. 1819, ' On the Formation and Decomposition of Sugar, and the Artificial Production of Crystallised Carbonate of Line; ditto, vol. iv. 1819, 'On the Acid formed in the slow Combustiou of Ether,' ditto, vol. vi. 1820, 'On a new Hygro meter,' ditto, voL viii. 1821, 'Description of a new Pyrometer,' ditto, voL xi. 1521, ' Experiments to ascertain tho effects of the great Eclipse in September, 1820.' On the Gaseous and Aqueous Atmo spheres,' ditto, vol. x. 1822, 'Inquiry, with Experiments, into Nature of the Products of the slow Combustion of Ether,' ditto, voL xii. 1822, ' Comparative Remarks (with three tables) on the Weather, and Seasons of the years 1819, 1820, and 1821,' ditto, vol xii. 1822, "On the Correction to be applied iu Barometrical Mensuration for the Effects of Atmolpherio Vapours by means of the Hygrometer,' ditto, vol. xiii. 1823, ' Meteorological Essays,' first edition, the second edition was published in 1827. 1824, 'Essay on Climate considered with regard to Horticulture,' in • Horticultural Transactions,' 1824. 1525, 'Observations and Experiments of Evaporation,' in 'Q. J. of Science,' xviL 1825, ' On the Homry Oscillation of the Barometer,' ih. xvii. 1825, ' Observations on the Radiation of Heat in the Atmo sphere,' ib. xvii. 1826, Two papers' On the Barometer,' followed by Corrsspondenceo, ' Q. J. of Sc.,' vols. xix. and xxL 1830, 'On certain
Phenomena resulting from the Action of Mercury on different Metals,' iu 'Royal Institution Journal,' vol. 1. 1830, ' On a New Register Pyrometer for measuring the Expansion of Solids, and for determining the higher degree' of Temperature upon tho Common Thermometric, Scale,' l'hiL Trans.,' 18S0. 1831, ' On tho Relation between the Pulybesiral and Spheroidal Theories of Crystallization, and the Con nexion of the latter with the Experiments of Professor 31itsseherlich,' in 'Royal Institution Journal,' vol. ii. 1831, ' Further Experiments on a New Register Pyrometer for measuring the Expansion of Solids,' in ' Trans.' 1831. 1832, 'On the Water Barometer erected in the Ilall of the Royal Seel. ty,' in 'Phil. Trans.,' 1832. Several papers ' Ou Voltaic Combinations (the Constant Ilettery); in ' Phil. Trans.,' 1836, 1839, and 1E42. 1839, 'Introduction to Chemical Philosophy;' 2nd ed., 1844. Three letters ' On the Electrolysis of Secondary Compounds,' 1839. 1840, and 1844. 1841, On the Spontaneous Es olution of Sulphuretted Hydrogen in the Waters of the Western Coast of Able., and of other Localities; in "PhiL Mag.,' vol. six.
DANNECKEll, JOHANN HEINRICH, was born at Stntgardt, Oct. 15, 1753. Ilia father was a groom employed in the stables of the Duke Kati of Wertemberg, at Stutgardt, where his particular business was with the mules; and young Datinecker was brought up in a very hnmi,le manner. In 1764 his father was removed to Ludwigoburg, and here Dannecker, though than only six years of age, evinced signs of that talent for art for which ho was afterwards so eminently dile tinguished. His first. essays were flowers and soldiers, which ho drew on any scrap of paper that erene into his hands, or he scratched them upon stouts. In 1771, in his fourteenth year, atunecker entered, by the duke'. desire, hut against his father's wish, the school established at Ludwigebnrg for the education of the children of the court-serecnts. He was first placed In the daaciagsselsool, in which he met with four fellow-pupils who became the most celebrated of his countrymen in their respective lines-the sculptor Sheflauer, the engraver J. 0. Muller, the musician Zumsteeg, and the poet Schiller. lie made such progress. iu drawing in two years as to be removed from the dancing school and placed iu the school of plastic design, under direction of the sculptors Bauer and Le Jeune, the modeller Sonnenocheitt, and the painters harper and Guibal. In this school lie remained three years, when, in 1780, in hie eighteenth year, he obtained the prize for the best model of Milo of Croton destroyed by the lion; upon which he was appointed sculptor to the duke, with a salary of 300 florins per annum. In 1783 he went with Scheffauer on foot to Paris, and there studied under Pajou; after a two years' stay in Paris, the two friends departed together, again on foot, for Rome, where Donneeker remained uutil 1790, and contracted a friendship there with Herder, OUthe, and Canova. A ' Ceres and Bacchus' which he executed in Rome were Dannecker's first works in marble: they are now in the palace at Stutgardt.