Ether Monument

The Ether Monument, also known as The Good Samaritan, is a statue and fountain near the northwest corner of Boston's Public Garden, near the intersection of Arlington Street and Marlborough Street.

It commemorates the use of ether in anesthesia. Its design has been attributed to the Boston architect William Robert Ware and to the sculptor John Quincy Adams Ward. It is 40 feet tall and is the oldest monument in the public garden.

Source: Wikipedia