In helping to do these two things, --governing the rivers and fixing the soil,-- he plays an important part, and if he and the forest had their way with the water-supply, floods would be prevented, streams would never run dry, and a comparatively even flow of water would be maintained in the rivers every day of the year.
(he and the forest; had; their way with the water-supply) (floods; would be prevented; ) (streams; would never run; dry) (he; plays; an important part; L:In helping to do these two things)
he and the forest floods streams he
had would be prevented would never run plays
their way with the water-supply
dry
an important part L:In helping to do these two things