The second plate has an outwardly extending indicating plate with a pair of spaced pins, and an indicating strip for measuring the height of {HEAD ~ liquid} collected in {TAIL ~ the compartment} 
collected in
The second plate has an outwardly extending indicating plate with a pair of spaced pins , and an indicating strip for measuring the height of { HEAD ~ liquid } collected in { TAIL ~ the compartment }
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 REL REL TAIL TAIL TAIL TAIL TAIL TAIL