post in 1870, he came to New York and became an editorial writer on the “Tribune,” where he remained about five years. He was afterward editor-in-chief of that paper for seven months, during the absence of Whitelaw Reid in Europe. He removed to Cleveland, Ohio, in 1875, and took an active part in the presidential canvasses of 1876, 1880, and 1884. Under the administration of President Hayes he was first assistant secretary of state in 1879-'81. In the latter year he represented the United States at the International sanitary congress of Washington, of which body he was elected president. He has published “Pike County Ballads,” one of the best known of which is “Jim Bludso” (Boston, 1871), “Castilian Days” studies of Spanish life and character (1871), and has been engaged many years in writing, in collaboration with John G. Nicolay, a “History of the Administration of Abraham Lincoln,” which is now (1887) in course of serial publication in “The Century.” Col. Hay is also the translator of Emilio Castelar's treatise on the Republican movement in Europe (New York, 1874-'5).
HAY, Walter, physician, b. in Georgetown,
D. C, 13 June, 1830. He was educated in private
schools and in the Jesuit college of his native
place. In 1847 he entered the employ of the U. S.
coast survey, but resigned in 1852, studied medi-
cine, and was graduated at Columbian college in
1853. After spending four years in Charleston
and Florida, he removed in 1857 to Chicago, 111.
He organized St. Luke's hospital in that city in
1864, became editor of the Chicago " Medical Jour-
nal "in 1867, and retained this connection until
the sale of the paper in 1875. In 1867 he assisted
in organizing the health department of the city of
Chicago. In 1871 he was one of the committee of
five to receive and distribute the fire relief fund.
In the same year he organized the department of
mental and nervous diseases in Rush medical col-
lege, Chicago, and in 1872 was appointed adjunct
professor of the theory and practice of medicine in
that institution. He assisted in organizing the
American neurological association in 1875. and in
1877 removed to Dubuque, Iowa. He is a frequent
contributor to the Chicago "Medical Journal."
HAYDEN, Ferdinand Vandeveer, geologist,
b. in Westfield, Mass., 7 Sept., 1829: d. in Phila-
delphia, Pa., 22 Dec, 1887. He settled in Ohio, was
graduated at Ober-
lin in 1850 and at
Albany medical col-
lege in 1853. Dur-
ing the same year he
explored the " Bad
Lands " of Dakota
for James Hall, state
geologist of New
York, and returned
with a large and val-
uable collection of
fossil vertebrates. In
1854 he again went
west, spent two years
in exploring the ba-
sin of the upper Mis-
souri, and returned
with a large number
of fossils, part of
which he deposited
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in the St. Louis academy of science, and the re- mainder in the Philadelphia academy of natural sciences. These collections attracted the attention of the authorities of the Smithsonian institution, and he was appointed geologist on the staff of Lieut. Gouverneur K. Warren, of the topographical engineers, who was then making a reconnoissance of the northwest, after which, in May, 1859, he was appointed naturalist and surgeon to "the expedition sent out for the exploration of the Yellowstone and Missouri rivers under Capt. William F. Raynolds. He continued in this capacity until May, 1862, when he entered the U. S. army as assistant surgeon of volunteers, and was assigned to duty in the Satterlee hospital in Philadelphia, becoming full surgeon on 19 Feb., 1863, when he was sent to Beaufort, S. C, as chief medical officer. In February, 1864, he became assistant medical inspector of the Depart- ment of Washington, and in September, 1864, he was sent to Winchester. Va., as chief medical offi- cer of the Army of the Shenandoah. This office he held until May, 1865. when he resigned and was given the brevet of lieutenant-colonel. He was appointed professor of mineralogy and geology in 1865 in the University of Pennsylvania, and held that chair until 1872, when the increased duties of the survey caused his resignation. During the summer of 1866 he again visited the valley of the upper Missouri for the Philadelphia academy of sciences, and gathered valuable vertebrate fossils. In 1867 congress provided for the geological sur- vey of Nebraska. Dr. Hayden was directed to perform the work, and continued so occupied until 1 April, 1869, when it was organized under the title of the Geological survev of the territories of the United States. From 1869 till 1872 Dr. Hay- den conducted a series of geological explorations in Dakota, Wyoming, Utah, and Colorado, the scope of investigation including, besides geology, the natural history, climatology, resources, and ethnology of the region. It was largely in conse- quence of his explorations and reports that congress was led to set apart the Yellowstone national park as a perpetual reservation. In 1873 geography was added, and the name of the organization then became the Geological and geographical survey of the territories. Dr. Hayden continued the di- rection of this survey until 1879. when the then existing national surveys were consolidated into the U. S. geological survey, and Dr. Hayden was made geologist-in-charge of the Montana division. He held this office until 31 Dec, 1886, when fail- ing health led- to his resignation. Dr. Hayden was a member of scientific societies both in the United States and in Europe, and in 1873 was elected to the National academy of sciences. In 1887 the degree of LL. D. was conferred on him by the University of Pennsylvania. lie wrote numerous scientific papers, and his government publications were very large. The latter include annual reports of his work performed from 1867 till 1879 ; also a series of " Miscellaneous Pub- lications " on special subjects written by authori- ties in the specialties of which they treat, and a series of quarto volumes entitled " Report of the U. S. Geological Survev of the Territories."
HAYDEN, Horace H., dentist, b. in Windsor. Conn., 13 Oct., 1769; d. in Baltimore, Md., 26 Jan., 1844. His parents were impoverished by the war of the Revolution, in which his father was an officer. The son taught school at sixteen years of age. studied architecture, and practised that professinn until his majority. He then was brought in contact with Dr. Greenwood, the dentist, of Washington, in New York. He studied dentistry, and settled in 1804 in Baltimore, where he practised with eminent success till his death. Dr. Hayden studied medicine, and geology also, and was called in consultation by the chief "physicians of Baltimore. His correspondence in Europe on geology, botany.
