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hat there is a little difference in the radii of their orbits； lest they ‘collide' some foul day。 Then； in most places； one or other； perhaps two will come in sight。 So much the less risk of clouds： and everywhere there may be one； except when it is cloudy。 Neither need be more than four thousand miles off； so much the larger and more beautiful will they be。 If on the old Thornbush moon old Herschel with his reflector could see a town…house two hundred feet long； on the Brick Moon young Herschel will be able to see a dab of mortar a foot and a half long； if he wants to。 And people without the reflector； with their opera…glasses； will be able to see sufficiently well。〃 And to this they agreed： that eventually there must be two Brick Moons。 Indeed； it were better that there should be four； as each must be below the horizon half the time。 That is only as many as Jupiter has。 But it was also agreed that we might begin with one。
Why we settled on two hundred feet of diameter I hardly know。 I think it was from the statement of dear John Farrar's about the impossibility of there being a state house two hundred feet long not yet discovered； on the sunny side of old Thornbush。 That； somehow； made two hundred our fixed point。 Besides； a moon of two hundred feet diameter did not seem quite unmanageable。 Yet it was evident that a smaller moon would be of no use； unless we meant to have them near the world； when there would be so many that they would be confusing； and eclipsed most of the time。 And four thousand miles is a good way off to see a moon even two hundred feet in diameter。
Small though we made them on paper； these two… hundred…foot moons were still too much for us。 Of course we meant to build them hollow。 But even if hollow there must be some thickness； and the quantity of brick would at best be enormous。 Then； to get them up！ The pea… shooter； of course； was only an illustration。 It was long after that time that Rodman and other guns sent iron balls five or six miles in distance；say two miles； more or less； in height。
Iron is much heavier than hollow brick； but you can build no gun with a bore of two hundred feet now；far less could you then。 No。
Q。 again suggested the method of shooting oft the moon。 It was not to be by any of your sudden explosions。 It was to be done as all great things are done；by the gradual and silent accumulation of power。 You all know that a flywheelheavy； very heavy on the circumference； light； very light within itwas made to save up power； from the time when it was produced to the time when it was wanted。 Yes？ Then； before we began even to build the moon； before we even began to make the brick； we would build two gigantic fly…wheels； the diameter of each should be 〃ever so great；〃 the circumference heavy beyond all precedent； and thundering strong； so that no temptation might burst it。 They should revolve； their edges nearly touching； in opposite directions； for years； if it were necessary； to accumulate power； driven by some waterfall now wasted to the world。 One should be a little heavier than the other。 When the Brick Moon was finished； and all was ready； IT should be gently rolled down a gigantic groove provided for it； till it lighted on the edge of both wheels at the same instant。 Of course it would not rest there； not the ten…thousandth part of a second。 It would be snapped upward； as a drop of water from a grindstone。 Upward and upward； but the heavier wheel would have deflected it a little from the vertical。 Upward and northward it would rise； therefore； till it had passed the axis of the world。 It would； of course； feel the world's attraction all the time； which would bend its flight gently； but still it would leave the world more and more behind。 Upward still； but now southward； till it had traversed more than one hundred and eighty degrees of a circle。 Little resistance； indeed； after it had cleared the forty or fifty miles of visible atmosphere。 〃Now let it fall；〃 said Q。； inspired with the vision。 〃Let it fall； and the sooner the better！ The curve it is now on will forever clear the world； and over the meridian of that lonely waterfall；if only we have rightly adjusted the gigantic flies；will forever revolve； in its obedient orbit； the
BRICK MOON；
the blessing of all seamen；as constant in all change as its older sister has been fickle； and the second cynosure of all lovers upon the waves； and of all girls left behind them。〃 〃Amen；〃 we cried； and then we sat in silence till the clock struck ten； then shook each other gravely by the hand； and left the South Middle dining… hall。
Of waterfalls there were plenty that we knew。
Fly…wheels could be built of oak and pine； and hooped with iron。 Fly…wheels did not discourage us。
But brick？ One brick is； say； sixty…four cubic inches only。 This moon；though we made it hollow； see；it must take twelve million brick。
The brick alone will cost sixty thousand dollars！
The brick alone would cost sixty thousand dollars。 There the scheme of the Brick Moon hung； an airy vision； for seventeen years；the years that changed us from young men into men。 The brick alone； sixty thousand dollars！ For； to boys who have still left a few of their college bills unpaid； who cannot think of buying that lovely little Elzevir which Smith has for sale at auction； of which Smith does not dream of the value； sixty thousand dollars seems as intangible as sixty million sestertia。 Clarke； second； how much are sixty million sestertia stated in cowries？ How much in currency； gold being at 1。37 1/4/？ Right； go up。 Stop； I forget myself！
So； to resume； the project of the Brick Moon hung in the ideal； an airy vision； a vision as lovely and as distant as the Brick Moon itself； at this calm moment of midnight when I write； as it poises itself over the shoulder of Orion； in my southern horizon。 Stop！ I anticipate。 Let me keepas we say in Beadle's Dime Seriesto the even current of my story。
Seventeen years passed by； we were no longer boys； though we felt so。 For myself； to this hour； I never enter board meeting； committee meeting； or synod； without the queer question； what would happen should any one discover that this bearded man was only a big boy disguised？ that the frockcoat and the round hat are none of mine； and that； if I should be spurned from the assembly； as an interloper； a judicious public； learning all the facts； would give a verdict； 〃Served him right。〃 This consideration helps me through many bored meetings which would be else so dismal。 What did my old copy say？
〃Boards are made of wood； they are long and narrow。〃
But we do not get on！
Seventeen years after； I say； or should have said； dear Orcutt entered my room at Naguadavick again。 I had not seen him since the Commencement day when we parted at Cambridge。 He looked the same； and yet not the same。 His smile was the same； his voice； his tender look of sympathy when I spoke to him of a great sorrow； his childlike love of fun。 His waistband was different； his pantaloons were different； his smooth chin was buried in a full beard； and he weighed two hundred pounds if he weighed a gramme。 O； the good time we had； so like the times