SECTION IV. — BIOGRAPHY. 20/

Harvey, Robert.
Obituary. J. Chem. Soc, London, xlvii, 331 ^1885).
Hasenclever, Friedrich Wilhelm.
Landolt, H, Nekrolog auf F. W. Hasenclever. Ber. d. chem. Ges., VIII, p. 703 (1875).
Hatton, Frank.
Obituary. J. Chem. Soc, London, xliii, 257 (1883).
Haureau, J. B. Life and bibliography of Arnaldus de Villa Nova, see Arnaldus de Villa Nova.
HJlVS, B. Frank. Lifework of Carl Wilhelm Scheele, see Scheele, C. W.
Hearder, Jonathan.
Obituary. J. Chem. Soc, London, xxxi, 500 (1877).
Heintz, Wilhelm.
WiSLiCENUS, J. Nekrolog auf W. Heintz. Ber. d. chem. Ges., xvi, p. 3121 (1883). Portrait of W. Heintz.
Obituary. J. Chem. Soc, London, xxxix, 181 (1881).
Hellot, Jean. Biographies of this chemist will be found in Biographie universelle, Hoefer's Nouvelle biographie generale, etc.
Helmont, Johann Baptist van. Biography, see Cap, P. A. ; Figuier, Vie des savants ; Rixner, Th. A.; Adelung, J. F. (Bibliography). Life of, by his son Fran- ciscus Mercurius van Helmont, see, in Section V, Helmont, J. B. van, Opera omnia [etc.].
Helmont, Johann Baptist van.
Bibliography of essays on the life and works of Van Helmont, Gazette
medicale de Paris, 1868. p. 457. Caillau, J. M. Memoire sur Jean Baptiste van Helmont et ses Merits.
Bordeaux, 1819. Svo. Loos. J. B. van Helmont. Heidelberg, 1807. i2mo. Mandon, Dr. J. B. van Helmont, sa biographie, histoire critique de
ses oeuvres. (Extrait des memoires de I'Academie royale de
Belgique.) Bruxelles, 1868. 4to. Masson, H. Essai sur la vie et les ouvrages de Van Helmont. Brux- elles, 1857. i8mo. Poultier d' Elmotte. Essai philosophique et critique sur la vie et
les ouvrages de Jean Baptiste van Helmont. Bruxelles, 181 7. Svo. Rommelaere, Dr. £tudes sur J. B. van Helmont. Bruxelles, 1868.
4to. Extrait des memoires de I'Academie de Belgique.
Henninger, Arthur. See Balard, A. J.
208 BIBLIOGRAPHY OF CHEMISTRY^
Henninger, Arthur.
HoFMANN, A. W. Nachricht von dem Tode des A. Henninger, Ber. d. chem. Ges., xvii, p. 2812 (1884).
Henry, Joseph.
Taylor, William B. An Historical Sketch of Henry's Contribution to tire Electro-Magnetic Telegraph. (From the Smithsonian Re- port for 187S.) Washington, 1879. pp. 103, 8vo.
Gray, Asa. Biographical Memoir of J. H. Annual Report of the Smithsonian Institution, 1S78. Washington, 1879. 8vo,
Life and portrait. Pop. Sci. Mon., 11, 741, April, 1873.
* A Memorial of Joseph Henry. Published by order of Congress. Wash- ington, 1880. pp. iv-528, sm. 4to. Portrait.
Contains a bibliography of his works. Full and valuable.
Henry, William. Life of, see Walker, Wm., Jr.
Henry, William Charles. Memoirs of John Dalton, see Dalton, John.
Herapath, Thornton John.
Obituary. Q. J. Chem. Soc, London, xii, 171 (i860).
Herapath, William [senior].
Obituary. Chem. News, xvii, 97, Feb. 21, 1868. Obituary. J. Chem. Soc, London, xxi, xxiv (1868).
Herapath, William Bird.
Obituary. J. Chem. Soc, London, xxii, vi (1869).
Hermes Trismegistus. See Trismegistus, Hermes.
Hess, G. H. Arbeiten von Richter, see Richter, Jeremias Benjamin.
Higgin, James.
Obituary. J. Chem. Soc, London, xlix, 351 (1886).
Hilger, a. See Gorup-Besanez, E. v.
Hildebrand, H. Der Alchemist Basilius Valentinus, see Valentinus, Basilius.
Hindmarch, William Matthewson.
Obituary. J. Chem. Soc, London, xx, 391 (1867).
Hirst, George.
Obituary. J. Chem. Soc, London, li, 475 (1887).
Hjelm, Peter Jacob. Biography and bibliography of Torbern Bergman, see Bergman, Torbern.