work of Montague Castle, Nicolo d'Ascenzo, Owen Bonaurt, Powell of
London, J. Gordon Guthrie, and Oliver Smith. The marble columns of the
Ark vary in color from deep purple to orange, and through the pierced
bronze Ark doors can be seen the red velvet coverings of the Scrolls of the
Law. The lamp for the perpetual light, hanging from the top of the Ark,
is bronze, as are the Menorah candlesticks.

On high holidays, when the attendance is approximately tripled, loud
speakers enable worshipers in the chapel, basement banquet hall, and com-
munity house assembly room to participate in the temple services, which
are in English. The temple occupies a leading place in Reformed Judaism.

The American Museum of Natural History: Hayden Planetarium

Central Park West, 77th to 81st St. IRT Broadway-7th Ave. subway (local) to
79th St.; or 8th Ave. (Independent) Grand Concourse or Washington Heights
subway (local) to 81st St.; or 9th Ave. el to 81st St.; or 8th Ave. bus to 79th or
81 st St.

Museum. Main entrance on Central Park West and 79th St. Hours: weekdays
10 a.m. to 5 p.m., Sunday and holidays 1 to 5 p.m. Admission free. Restaurant on
second floor, cafeteria in basement; closed Sunday.

Planetarium. Main entrance on 81st St. Performances: Monday to Friday at 2,
3:30, and 8:30 p.m.; Saturday at 11 a.m. and 1, 2, 3, 4, 5, and 8:30 p.m.; Sunday
and holidays at 2, 3, 4, 5, and 8:30 p.m. Admission: adults 250 and 500 matinees,
350 and 6o0 evenings; children 150 at all times.

Besides being one of the world's largest institutions devoted to natural
science exhibits, the American Museum of Natural History is also a re-
search laboratory, a school for advanced study, a publishing house for
scientific manuscripts, and a sponsoring agency of field exploration expe-
ditions.

The incorporation of the museum in 1869 was an expression of the
surge of interest in natural science stimulated by great advances, such as the
use of the spectroscope, Mendel's law of heredity, Darwin's theory of evo-
lution, the law of the conservation of energy, and the identification of light
as an electromagnetic phenomenon. Its first collections were housed in the
old Arsenal building in Central Park. The cornerstone of the first among
the present structures was laid in 1874 by President Grant, and the museum
was formally opened by President Hayes in 1877. Since then, new build-
ings for exhibition and study have been added, including the Theodore
Roosevelt Memorial and the Hayden Planetarium; the occupation of the