=Campbell, Douglas Houghton.= _Mch._, 1859- ----. A professor of botany in Stanford University. Elements of Structural and Systematic Botany; Structure and Development of the Mosses and Ferns. _Mac._ =Campbell, Mrs. Helen [Stuart].= 1839- ----. A writer who is deeply concerned in philanthropic and social reforms, and whose work covers a wide range of topics. In Foreign Kitchens; The Easiest Way in Housekeeping, are books for the housekeeper. Prisoners of Poverty; Prisoners of Poverty Abroad; Some Passages in the Life of Dr. Martha Scarborough; Women Wage-Earners; Problem of the Poor; Darkness and Daylight in New York, relate to the social problems of the time. Six Sinners; His Grandmothers; Roger Berkeley’s Probation; Miss Melinda’s Opportunity; Mrs. Herndon’s Income; The What-to-Do-Club; Under Green Apple-Boughs; Unto the Third and Fourth Generation; Patty Pearson’s Boy, are fictions. Other works are Girls’ Handbook of Work and Play; A Sylvan City, a description of Philadelphia; The Ainslee Stories, for juvenile readers; Anne Bradstreet and her Time, _supra_. _Fo. Hou. Lo. Rob._ =Campbell, James Valentine.= _N. Y._, 1823-1890. A Michigan jurist. Outlines of the Political History of Michigan. =Campbell, John Lyle.= _Va._, 1818-1886. A professor of chemistry at Washington and Lee College, 1851-86. Manual of Scientific and Practical Agriculture; Idaho, Six Months in the New Gold Diggings; Guide to the Agricultural and Mineral West; Geology and Mineral Resources of the James River Valley, Virginia. =Campbell, John Poage.= _Va._, 1767-1814. A once popular clergyman on the Ohio border. The Passenger; Strictures on Stone’s Letters on the Atonement; Vindex; Letters to the Rev. Mr. Craighead; The Pelagian Defeated; An Answer to Jones. =Campbell, William Henry.= _Md._, 1808-1890. A Dutch Reformed clergyman, president of Rutgers College, 1863-82. Subjects and Modes of Baptism; Influence of Christianity in Civil and Religious Liberty; System of Catechetical Instruction. =Campbell, William W.= _N. Y._, 1806-1881. A jurist of New York city. Annals of Tryon County, reissued as Border Warfare; Memoirs of Mrs. Grant, Missionary to Persia; Life and Writings of De Witt Clinton; Sketches of Robin Hood and Captain Kidd. =Canfield, Henry Judson.= _Ct._, 1789-1856. An agriculturist who published a serviceable Treatise on the Breed, Management, Structure, and Diseases of Sheep. =Cannon, Charles James.= _N. Y._, 1810-1860. A New York littérateur who besides compiling a series of readers published, among other works, Poems, Dramatic and Miscellaneous; Pencillings from the Web of Life, and a number of dramas now forgotten. =Cannon, James Spencer.= _W. I._, 1776-1852. A Dutch Reformed clergyman of New Jersey, professor of metaphysics at Rutgers College, 1826-56. Lectures on Chronology; Lectures on Pastoral Theology.