They are both there.
FYI -
when requested (which is often)
. . . the bartender mixes 1/2-Bass and 1/1 Ginger Ale.
. . . Bass Ale is usually pretty bitter
. . . the Ginger Ale cuts the bitterness
. . . this is known as a Black and Tan
. . . if you mix Harp instead of Bass, it is called and Shandy