( Subject ( ( matter ( wherein ( ( ( the length ) ( of ( ( the ( light path ) ) ( through ( the liquid ) ) ) ) ) ( may ( be ( ( varied , ) ( as ( by ( ( ( ( inserting ( ( a ( light-transmitting member ) ) ( of ( constant ( light-transmitting length ) ) ) ) ) ( into ( ( the liquid ) ( to ( a ( desired depth ) ) ) ) ) ) and ) ( ( passing light ) ( through ( ( ( the liquid ) and ) ( ( the ( light-transmitting member ) ) ( in series ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Subject)) (VP (NN matter) (SBAR (WHADVP (WRB wherein)) (S (NP (NP (DT the) (NN length)) (PP (IN of) (NP (NP (DT the) (JJ light) (NN path)) (PP (IN through) (NP (DT the) (NN liquid)))))) (VP (MD may) (VP (VB be) (VP (VBN varied) (, ,) (PP (RB as) (IN by) (S (VP (VP (VBG inserting) (NP (NP (DT a) (JJ light-transmitting) (NN member)) (PP (IN of) (NP (JJ constant) (JJ light-transmitting) (NN length)))) (PP (IN into) (NP (NP (DT the) (NN liquid)) (PP (TO to) (NP (DT a) (VBN desired) (NN depth)))))) (CC and) (VP (VBG passing) (NP (NN light)) (PP (IN through) (NP (NP (DT the) (NN liquid)) (CC and) (NP (NP (DT the) (JJ light-transmitting) (NN member)) (PP (IN in) (NP (NN series)))))))))))))))) (. .)))
Subject matter wherein the length of the light path through the liquid may be varied, as by inserting a light-transmitting member of constant light-transmitting length into the liquid to a desired depth and passing light through the liquid and the light-transmitting member in series.
(ROOT (S (NP (JJ Translucent) (NN matter)) (VP (VBZ transmits) (NP (ADJP (JJ light) (CC but) (JJ scatters)) (DT the) (NN light)) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ passes) (PRT (RP through)))))) (. .)))
Translucent matter transmits light but scatters the light as it passes through.