Show GYPSUM AT THE exposition of the many products d derived from gypsum staff is of particular interest as a material r commonly used in the construction ta ion of large temporary buildings notably those at the pana ma pacific exposition at san francisco and the panama cali fornia exposition at san DI diego ae go I 1 cal the material used for the buildings in san francisco however differs from that used in ill the buildings of previous expositions in being cast to imitate the famous roman travertine the state of utah is proud of the fact that hat all the gypsum for the build ings in san diego and at least 80 per can cent of that used at san francisco according cording ie to estimates of the cx exposition position officials is reported to have been quarried near nephi utah |