would suggest to his lordshipâs horse-loving friends that the Marsdens had gone over to the enemy camp.
âThereâs a bit of fine tuning to be done,â Charles said, pulling on his pipe. That was another of the benefits of life at Bishopâs Keep. There was leisure for scientific and technical experimentation. âSo far, we have been operating only one of the three retorts, but I daresayââ
âExcellent,â Bradford said hastily. He looked at Rolls, who was smoking a Turkish cigarette and sipping a cordial. âIn that case, Charlie and I have a small favor to beg of you.â
âActually, itâs a rather large favor,â Rolls said. He grinned easily at Charles, his eyes sparkling, and spoke with an almost schoolboy eagerness.
Charles raised his eyebrows. âYou need coal gas to power a combustion engine at your motorcar exhibition?â The thought that coal gas might serve as engine fuel had already occurred to him. Perhaps he might use it to power the single-cylinder stationary engine that now drove an experimental dynamo, which he hoped would soon electrify Bishopâs Keep. If, that is, he could overcome the servantsâ concerns about what Kate termed âhis explosive activities.â
Rolls laughed. âWeâll need a great deal more gas than that. Weâll be lifting about a thousand pounds.â
âLifting?â Charles asked, surprised. âYou want me to fill a balloon, then.â
âI told you heâs quick,â Bradford said to Rolls, with satisfaction. âNever misses a clue.â
âI fear I have missed something, though,â the vicar said. âI thought we were to have a motorcar exhibition. And now weâre to have a balloon?â
âThe idea is to attract the publicâs attention,â Rolls explained. âWe thought it would be jolly to have a balloon chaseâhare and hounds, dâyou see? The balloon sails off across country and the motorcars pursue it. The first to reach the balloonâs landing spot wins.â
âAre you sure any will reach it?â Charles asked. âThe lanes in this part of the country are atrocious. And the vehicles themselves are not dependable enough toââ
âBut that doesnât matter, donât you see?â Rolls exclaimed. âIt will be a glorious race, however it goes. And it will attract an enormous amount of attention,â he added happily.
âAlready has,â Bradford muttered.
Charles went to the shelf and took down a thick chemical reference work. He opened it to a table of gas properties, then pulled out his ivory slide rule. After a momentâs calculating, he said, âIt appears that youâll need between twenty to thirty thousand cubic feet of gas.â
Rolls frowned. âThatâs vastly more than weâd anticipated. Can you do it?â
âWe donât normally produce anything like that amount here,â Charles replied, âand my storage reservoir is quite small. But if we put the other two retorts into service, I daresay we can produce it in a day or so. And if the weather remains reasonably calm, the gas can be discharged directly into the balloon.â He looked from Bradford to Rolls. âI assume you have already procured one.â
At Bradfordâs nod, the vicar leaned forward eagerly. âBallooning has long been a dream of mine. I knew a man who lived in Paris during the Prussian siege of â70. He was one of the aeronautsâoh, fortunate men!âwho carried mail and emissaries out of the city.â His pale blue eyes shone. â âIâll leap up to my God! Who pulls me down?â as Faust says. What a glorious excitement! I should like to have escaped Paris by balloon.â
âOr flown over the Alps,â Rolls returned warmly, âlike that Frenchman, Francisque Arban, in â46. He ascended on the French side, during a storm that lifted