Abut on

His land abuts on the road.

The fronts of the houses abut on the pathway, which is about four feet wide, and are unequally places, following the contour of the ground.

The stalked gland (14 — 12-15) has a capital of usually 32 cells radiating from the centre and standing out like an umbrella top. These cells all abut on a central short cell resting on the top of the long stalk cell.

Now the two bounding notes of an enharmonic tetrachord of the relevant sort will indeed both be the lowest notes of pykna when the tetrachords are put together in conjunction; but the higher of them can never abut on a pyknon in the case envisaged here, where the tone is introduced to disjoin the tetrachords.