The branch ran horizontally for awhile and then began to rise.
He traveled through another tube now, this rising straight up instead of running horizontally as had the first.
Growth lines run horizontally over the surface of the shell.
The sides of the tree that run horizontally along the horse's back are known as bars.
A series of several large black dots then run horizontally along the lateral line area.
Another rainstorm one might have said, except that the water was running horizontally!
A number of parallel lines or grooves run horizontally across this board.
Sometimes women, held by two men, ran horizontally against a wall.
A small pipe, running horizontally, high up on the wall near the ceiling.
The line continued above her head, running horizontally and then back down.