The grantor may also in like manner, convey by grant to the trustee or trustees any real property within this state belonging to him, which may be necessary or proper for the erection and maintenance of buildings suitable to the institution, and the buildings erected thereon, with grounds, conveniently adjacent thereto, and other lands, tenements, and hereditaments for the purpose of producing an income for the support and maintenance of the institutions and any collateral burdens which may be imposed by the terms of the foundation as part and parcel of the regulations for its conduct, and also personal property of all descriptions, which may subserve the purposes of the institution and maintenance of the library, museum, or gallery of art.