What term refers to successive courses of masonry that project out from the face of the chimney?

The term that refers to successive courses of masonry that project out from the face of the chimney is "corbel." Corbelling is a technique used in masonry construction where bricks or stones are laid in a way that each successive course steps out further from the structure. This method not only creates a decorative effect but also serves to support weight above the corbelled area.

In the context of chimneys, corbelling can be used to create a wider top or to add visual interest to the structure. It is an ancient technique used in various architectural styles, and you will commonly see it in buildings where bricks or stones are stacked to form arches, ledges, or even decorative elements on the façade.

The other terms, while related to masonry, do not describe this specific architectural feature. Bricks are the individual units used in masonry, coping refers to the protective cap on top of a wall or chimney, and a lintel is a structural element placed over doorways and windows to support the weight of the masonry above.