REVISED PURPOSE OF THE INVESTIGATION Under these circumstances the emphasis of the investigation was shifted and an effort was made to determine, if possible, what data could be gathered from an observation of those plants which gave tests as compared with those that did not.
(those plants; gave; tests; as compared with those) (REVISED PURPOSE OF THE INVESTIGATION Under these circumstances the emphasis of the investigation; was shifted; ) (those; did not; )
those plants REVISED PURPOSE OF THE INVESTIGATION Under these circumstances the emphasis of the investigation those
gave was shifted did not
tests as compared with those