Show Invents New Blast Furnace San The Francisco The University of California mining department announced announced announced an an- Friday the perfection b byi by Allan Allan Allan Al Al- lan Bruce Marquard a senior student of a new ore smelting blast furnace In which crude oil Is used as fuel and which it is said will eliminate by means of a vacuum hydro-vacuum device the poisonous fumes given oft off in the smelting of ot copper Practical operation operation operation opera opera- tion of the Invention it is said has been had In the mining laboratory of the university |