This is a proceeding in mandamus to compel the respondents to receive and act upon a petition for the organization of a water storage district under the California Water Storage District Act (Stats. 1921, p. 1727). It is submitted upon demurrer, the effect of which is to challenge the constitutionality of the act.
*598
If the provision in section 6, making the finding of the state engineer in certain matters conclusive against all persons except the state, should be held unconstitutional, it would in no way destroy or render useless the remainder of the act.
We come now to a more serious and difficult group of questions, presented by the claim that the act attempts to delegate legislative power to the state engineer in violation
*600
of section 1 of article IV of the constitution, and that it requires him to exercise both legislative and judicial powers in violation of article III thereof.
The difficulty herein lies not so much in the ascertainment of the settled rules of constitutional law as in their
*601
correct application to the various provisions under consideration.
Respondents’ demurrer is overruled, and it is ordered that a peremptory writ of mandate issue herein as prayed.
Kerrigan, J., Lennon, J., Waste, J,. Wilbur, C. J., Lawlor, J., and Seawell, J., concurred.
