The other two meningeal layers are the arachnoid mater and the pia mater. The dura surrounds the brain and the spinal cord and is responsible for keeping in the cerebrospinal fluid.he other two meningeal layers are the arachnoid mater and the pia mater. The dura surrounds the brain and the spinal cord and is responsible for keeping in the cerebrospinal fluid.
For 50 years, the stairs carried fans of the five city sports teams to and from the Polo Grounds in Harlem, until they finally rusted away in the years following the stadiumâs demolition, in 1964. John T. Brush, who built the stairway and donated it to the city, died the year before it opened to the public.
Polo, IL. Polo is a city in Ogle County, Illinois, United States. The population was 2,355 at the 2010 census, down from 2,477 at the 2000 census. Polo is located at 41Â°59â²13â³N 89Â°34â²38â³W / 41.98694Â°N 89.57722Â°W / 41.98694; -89.57722 (41.986852, -89.577100). According to the United States Census Bureau, the city has a total area of 1.3 square miles (3.4 kmÂ²), all of it land.