FIG 2 shows a schematic view of {HEAD ~ a cross section} of the intermediate layer in FIG 1 sectioned parallel to {TAIL ~ the plane} 
FIG 2 shows a schematic view of { HEAD ~ a cross section } of the intermediate layer in FIG 1 sectioned parallel to { TAIL ~ the plane }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL