As soon as the iron retorts were available, the joint manufacture of sal ammoniac and soda was started, as already outlined by Doggo. In iron pots, Cabot melted together finely ground white sand, with lime, soda, and potash, and blew the resulting glass into bottles, retorts, test tubes, and other laboratory apparatus; also jars for his electric batteries. He used both soda and potash, as this would render the glass more fusible than if made with either alone. Lead was melted from galena crystal in small quantities for solder. Thus was suggested to Doggo, the manufacture, on the side, of bullets, gunpowder, and cartridges, for the rifle which Myles had in his quarters, and for the one which lay in the concealed airplane. Tales of the copper-smelting had spread among the populace, who evinced such great interest that double guards had to be placed and maintained about the laboratory inclosure. And every returning military expedition brought with it samples of unusual minerals. Meanwhile, Cabot instituted a regular campaign of getting Vairkingi accustomed to Doggo. Every day, Doggo would parade the high-walled streets, with Quivven the Golden Flame perched upon his back. The ten-foot ant inspired great interest and considerable fear. She enjoyed her rides thoroughly, not only for the novelty of the thing, but also because her seat on his six-foot-high back brought her head above the level of the fence palings, and thus enabled her to survey the private yards of everyone. Tipi had not been seen or heard from. Arkilu the Beautiful thoroughly made up with the earth-man, and even admitted that her love for him had been a mistake. Plans for her wedding with Jud proceeded rapidly. When this coming marriage was publicly announced, Att the Terrible sent in a Roy runner with the message that he didn’t in the least care. Quivven now lived in the palace, so as to be near her father, but came to work regularly each day. Theoph the Grim interposed no objection to this, and, in fact, frequently accompanied his daughter to the laboratory. He loved to mess around the bottles and retorts, and lost much of the grimness when engaged in this childish meddlesomeness. So every one was happy except Tipi the Steadfast and Att the Terrible. Jud continued the operation of the brickyard, even though Cabot had no more need of bricks, for Jud planned to build himself a brick palace which would outshine even the palace of King Theoph. Melting the platinum for the wires presented a problem, until Myles thought of electrolizing some ordinary water into its constituent hydrogen and oxygen, and then burning these two materials together in a double blow-pipe, much like that used in oxyacetylene welding.