"But in place of using a disk, he got up a small machine with a cylinder provided with grooves around the surface. Over this some tinfoil was to be placed and he gave it to an a.s.sistant to construct. Edison had but little faith that it would work, but he said he wanted to get up a machine that would 'talk back.' The a.s.sistant thought it was ridiculous to expect such a thing, but he went ahead and followed the directions given him. Edison has told of this:

"'When it was finished and the foil was put on, I shouted a verse of "Mary had a little lamb" into the crude little machine. Then I adjusted the reproducer, which when he began to operate it, proceeded to grind out--

"'Mary had a little lamb, Its fleece was white as snow, And everywhere that Mary went, The lamb was sure to go'

"with the very quality and tones of my voice! We were never so taken back in our lives. All hands were called in to witness the phenomenon and, recovering from their astonishment, the boys joined hands and danced around me, singing and shouting in their excitement. Then each yelled something at the machine--bits of slang or slurs--and it made them roar to hear that funny little contraption 'sa.s.s back!'

"Edison has always had a saving sense of humor. Though such a driver for work--sometimes twenty hours a day seemed too short and they often worked all of twenty-four,--there was not unfrequently a jolly, prank-playing relaxation among the employees in the laboratory. If some fellow fell asleep and began snoring the others would get a record of it and play it later for the culprit or they would fix up a 'squawkophone'

to outdo his racket. Most amusing was Edison's means of taking a short nap by curling up in an ordinary roll-top desk, and then turning over without falling out.

"Everybody knows Edison really invented the telephone--that is, he made it work perfectly and brought it to the greatest commercial value, so that a billion men, women and children are using it in nearly all the languages and dialects in the civilized world. But he was very careful to give Dr. Alexander Graham Bell credit for his original work on this great invention.

"When a friend on the other side of the Atlantic wired that the English had offered 'thirty thousand' for the rights to one of Edison's improvements to the telephone for that country, it was promptly accepted. When the draft came the inventor found, much to his surprise, that it was for thirty thousand _pounds_--nearly one hundred and fifty thousand dollars.

"The phonograph or talking machine has been considered one of Edison's greatest inventions, but it does not compare in importance and value with the electric incandescent burner light. This required many thousands of experiments and tests to get a filament that would burn long enough in a vacuum to make the light sufficiently cheap to compete with petroleum or gas. During all the years that he was experimenting on different metals and materials for the electric light which was yet to be, in a literal sense, the light of the world, he had men hunting in all countries for exactly the right material out of which the carbon filament now in use is made. Thousands of kinds of wood, bamboo and other vegetable substances were tried. The staff made over fifty thousand experiments in all for this one purpose. This ill.u.s.trates the art and necessity of taking pains, one of Mr. Edison's greatest characteristics. The story of producing electric light would fill a big volume.

"When the proper filament was discovered and applied there was great rejoicing in the laboratory and a regular orgy of playing pranks and fun.

"The philosophers say we measure time by the succession of ideas. If this is true the time must have been longer and seemed shorter in Edison's laboratories than anywhere else. The great inventor seldom carried a watch and seemed not to like to have clocks about.

"Soon after he was married, the story went the rounds of the press that within an hour or two after the ceremony, Edison became so engrossed with an invention that he forgot that it was his wedding day. Edison has declared this story to be untrue.

"'That's just one of the kind of yarns,' said the inventor laughing, 'that the reporters have to make up when they run short of news. It was the invention of an imaginative chap who knows I'm a little absent-minded. I never forgot that I was married.

"'But there was an incident that may have given a little color to such a story. On our wedding day a lot of stock tickers were returned to the factory and were said to need overhauling.

"'About an hour after the ceremony I was reminded of those tickers and when we got to our new home, I told my wife about them, adding that I would like to walk down to the factory a little while and see if the boys had found out what was the matter.

"'She consented and I went down and found an a.s.sistant working on the job. We both monkeyed with the machines an hour or two before we got them to rights. Then I went home.

"'My wife and I laughed at the story at first, but when we came across it about every other week, it began to get rather stale. It was one of those canards that stick, and I shall be spoken of always as the man who forgot his wife within an hour after he was married.'

"A similar yarn was told of Abraham Lincoln, which was equally false, but even more generally believed.

"Out of a mult.i.tude of labor savers and world-beaters--and world savers, too!--to be credited to Mr. Edison, it is impossible to mention more than these:

"The quadruplex telegraph system for sending four messages--two in each direction--at the same time; the telephone carbon transmitter; the phonograph; the incandescent electric light and complete system; magnetic separator; Edison Effect now used in Radio bulbs; giant rock crushers; alkaline storage battery; motion picture camera. These are but few of Edison's inventions, but they are giving employment to over a million people and making the highest use of billions of dollars.

"With Mr. Edison's modesty it is difficult to get him to talk of the relative importance of his inventions, but he has expressed the opinion that the one of most far-reaching importance is the electric light system which includes the generation, regulation, distribution and measurement of electric current for light, heat and power. The invention he loves most is the phonograph as he is a lover of music. He has patented about twelve hundred inventions.

"Recent developments are proving that the moving picture, because of its educational and emotional appeal is the greatest of them all. It is estimated that more than one hundred millions of people go to one of these shows once every seven days, which is equivalent to every man, woman and child in the United States of America going to a movie once a week. The motion picture reaches, teaches and preaches to more people in America than all the schools, churches, books, magazines and newspapers put together, and when it teaches, it does it in a vivid way that live people like.

"Political campaigns are beginning to be carried on with the silver screen for a platform. Writers in great magazines are proving, on the authority of the j.a.panese themselves, that the American moving picture is re-making j.a.pan. Another, who has studied the signs of the times, a.s.serts that the only way to bring order out of chaos in Russia is by means of the motion picture.

"Comparisons are of times odious, but not in this case, for there is no man living, nor has there ever lived a man, except the Great Teacher, who has more greatly and generally benefited humanity or cast a stronger light upon the processes of civilization than Thomas Alva Edison."

At the close of another musical number there was a general expectation of dismissal, a shuffling of feet and a murmur of voices. This was checked suddenly by Bill. The boy had been near the receiver all the while, on the chance of being needed in case of mishap, or for a sharper "tuning in"; now he got what the others did not and rising he let out a yell:

"Everybody quiet! Something else!" and in the instant hush was heard the completion of an announcement:

"--Scouts of America, the Girl Scouts and other organizations of kindred nature, upon their urgent invitation. We are making this announcement now for the fourth and last time in the hope that it may be universally received. Mr. Edison will now probably be here within an hour from this minute. All the youth of the land who may avail themselves of radio service will please respond and listen in. In a warmly appreciative sense this must be a gala occasion."

"That's all, folks; I'm certain." Bill shouted the school yell and the cla.s.s year: "Umpah, umpah, ho, ho; it's up to you, Fairview, 1922!"

Then: "Bring 'em all back here, Gus."

But not one of them needed urging nor reminding. Separating themselves from the rapidly diminishing and retreating audience came Ted, Terry, Cora, Dot, Grace, with Skeets as a guest, Bert Haskell, Mary Dean, Lem Upsall, Walt Maynard, Lucy Sh.o.r.e and Sara Fortescue, the entire bunch eagerly attentive. They crowded around Bill and Gus and were well aware of the purpose.

"Sure, we'll all be here, I'll bet a cow!" shouted Ted.

"Dot and I could listen in on our own radio," said Cora. "We've got it finished and it works fine and dandy, Billy. We want you and Gus and everybody to come over and try it. But we'll join in with the cla.s.s on this; eh, Dot?"

"Sure will," agreed Dot. "Ours is only a crystal set, but it has some improvements you boys haven't seen. Wait till we get it all done, and we'll give you a spread and a surprise."

"Say, Bill, this thing's great," Terry said. "Father is going to get me an outfit in the city and I'll pay you and Gus to set it up for--"

"Set it up yourself, you lazy thing!" said Cora.

"If you please, miss, I've got other matters--"

"All right, Terry,--see you later about it. Now, listen, hopefuls.

You'll all be here, but this occasion is going to be incomplete, unless we have a lot more on deck. We all want to get out, and scout round and fetch in every kid that wants to amount to anything at all and is big enough to understand and appreciate what's going on. And even then it won't be quite up to snuff unless--"

"I know! You want Mr. Hooper here, too!" shouted Skeets. But in trying to rise to make herself heard, she upset her chair and then sat down on the floor, jarring the building. When the shout of mirth subsided, Bill said:

"That's right. Mr. Hooper and Professor Gray. We'll have to tell them about it."

"Father wrote that he's coming home to-night," announced Grace proudly.

"Great shakes! Did he? Gus, get on the 'phone and find out!" Bill commanded. "Now, then, let's all get busy and----"

"Righto, Billy, but what will our folks think has become of us when it's so late?" Dot questioned.

"I move we go into executive session!" shouted Walt Maynard.

"Sure, and the president of the cla.s.s can call a meeting," said Terry Watkins.

"It's up to you then, Billy," Cora agreed.

"I call it. Come to order and dispense with the minutes, Miss Secretary," Billy grinned at Dot. "Motion in order to send a committee to inform all the girls' parents."

"I make that motion," said Bert.

"Second it. The boys' parents can get wise by radio," a.s.serted Ted.

"Bert and Ted appointed. Get out and get busy!" Bill was no joke as an executive. "Here's Gus. Did you get Mrs. Hooper?"

"I sure did. Mr. Hooper got home an hour ago."

"Glory!" Grace, you're driving your little runabout? I appoint Grace and Mary a committee to go and get Mr. and Mrs. Hooper here right off. No objections? Don't fail, Grace, or we'll send the entire bunch."