A mechanism is provided for adjusting the ratio of the volume to the compliance of the reference cell, so that this ratio may be made exactly equal to {HEAD ~ the corresponding ratio} for {TAIL ~ the measuring cell} 
for
A mechanism is provided for adjusting the ratio of the volume to the compliance of the reference cell , so that this ratio may be made exactly equal to { HEAD ~ the corresponding ratio } for { TAIL ~ the measuring cell }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL