Columbia subject headings:
Biologists--Great Britain--Biography.
Biology--Philosophy.
Great Britain--Social life and customs--19th century.
Huxley, Thomas Henry, 1825-1895.
Science--Philosophy.
Harvard subject headings:
Biologists--Great Britain--Biography.
Biology--Philosophy
Great Britain--Social life and customs--19th century
Huxley, Thomas Henry, 1825-1895
Science--Philosophy
Princeton subject headings:
Biologists--Great Britain--Biography.
Biology--Philosophy.
Great Britain--Social life and customs--19th century.
Huxley, Thomas Henry, 1825-1895.
Science--Philosophy.