Boards for the national guard ahall be appointed by the guvernur for offleera above the grade of colunel. and by j the niajur-general for offleera below the { grade of brigadier-general: lioarda for the naval aillitla ahall Lie appointed by the govern.v. and ahall be i>ompoaed of offl- i cers uf such grade or rank as bs may de?? termine.