§ 22. When appropriations are available; appropriations for two or
more objects. No item of an appropriation made for the performance of
such work shall be available, except for advertising or expenses
incurred in the preparation of plans and specifications, engineering
work or superintendence, unless one or more contracts or special orders
shall first have been made for the completion of such work within the
appropriation therefor. If an appropriation be made for the
construction, reconstruction, alteration, repair or improvement of any
state buildings in an appropriation act specifying two or more objects
for which the appropriation is made and any one of such objects shall
have been accomplished for a sum less than the amount specified in the
act, the unexpended balance shall be applicable to any other work
specified in the act.