=Helper, Hinton Rowan.= _N. C._, 1829- ----. A Southern writer long resident in New York city. The Impending Crisis of the South, a once famous work, which appeared shortly before the opening of the Civil War; Nojoque; The Negroes in Negroland; The Land of Gold; Oddments of Andean Diplomacy; The Three Americas Railway. =Hempel, Charles Julius.= _P._, 1811-1879. A physician of Grand Rapids, Michigan, who came to America from Prussia in 1835. Christendom and Civilization; System of Materia Medica and Therapeutics; The Science of Homœopathy; Homœopathic Theory and Practice in Surgical Diseases (with J. Beakley); True Organization of the New Church; Life of Christ (in German); several important translations from the German. =Henck, John Benjamin.= _Pa._, 1816- ----. A professor of engineering in the Massachusetts Institute of Technology, 1865-81, and the author of a Field Book for Railway Engineers. =Henderson, Ernest Flagg.= _N. Y._, 1861- ----. An instructor in Wellesley College. A History of Germany in the Middle Ages; Historical Documents of the Middle Ages (edited); collaborator in Larned’s History for Ready Reference. _Mac._ =Henderson, Isaac.= _N. Y._, 1850- ----. A New York city journalist, 1872-81, who has since lived abroad. The Prelate; Agatha Page. The second of these two novels has been dramatized. _Hou._ =Henderson, Mrs. Mary [Foote].= _N. Y._, 1842- ----. A writer of St. Louis who organized the Industrial Art School in that city. Practical Cooking and Dinner-Giving; Diet for the Sick. _Har._ =Henderson, Peter.= _S._, 1823-1890. A noted seedsman of New York city. Gardening for Profit; Practical Floriculture; Gardening for Pleasure; Handbook of Plants; How the Farm Pays; Garden and Farm Topics. _Ju._ =Henderson, William James.= _N. J._, 1855- ----. A journalist on the staff of the New York Times. The Story of Music; Preludes and Studies; Sea Yarns for Boys; Afloat with the Flag; Elements of Navigation. _Har._ =Hendrix, Eugene Russell.= _Mo._, 1847- ----. A bishop of the Methodist Church South, whose official residence is at Kansas City. He has written Around the World. =Hening, William Waller.= 17-- -1828. A legal writer of Virginia. The American Pleader and Lawyer’s Guide; The New Virginia Justice; The Statutes of Virginia, 1691-1792; Reports of Cases in the Supreme Court of Appeals of Virginia and in the Supreme Court of Chancery for Richmond District (with W. Munford, _infra_). =Henkle, Moses Montgomery.= _Va._, 1798-1864. A Methodist clergyman of Baltimore and elsewhere. Masonic Addresses; Primary Platform of Methodism; Analysis of Church Government; Life of Bishop Bascom; Primitive Episcopacy. =Hennequin= [en´-căn], =Alfred.= _F._, 1846- ----. A dramatist and educator who beside several Anglo-French text-books has published The Art of Playwriting. _Hou._