I then gave the screw a half-turn more, and told him to walk and run. He started off, at first slowly, then he made long strides, then he began to run, and then to skip and jump. It had been many years since Mr. Gilbert had skipped and jumped. No one was in sight, and he was free to gambol as much as he pleased. "Could you give it another turn?" said he, bounding up to me. "I want to try that wall." I put on a little more negative gravity, and he vaulted over a five-foot wall with great ease. In an instant he had leaped back into the road, and in two bounds was at my side. "I came down as light as a cat," he said. "There was never anything like it." And away he went up the road, taking steps at least eight feet long, leaving my wife and me laughing heartily at the preternatural agility of our stout friend. In a few minutes he was with us again.

"Take it off," he said. "If I wear it any longer I shall want one myself, and then I shall be taken for a crazy man, and perhaps clapped into an asylum."

"Now," said I, as I turned back the screw before unstrapping the knapsack, "do you understand how I took long walks, and leaped and jumped; how I ran uphill and downhill, and how the little donkey drew the loaded wagon?"

"I understand it all," cried he. "I take back all I ever said or thought about you, my friend."

"And Herbert may marry Janet?" cried my wife.

"_May_ marry her!" cried Mr. Gilbert. "Indeed, he _shall_ marry her, if I have anything to say about it! My poor girl has been drooping ever since I told her it could not be."

My wife rushed at him, but whether she embraced him or only shook his hands I cannot say; for I had the knapsack in one hand and was rubbing my eyes with the other.

"But, my dear fellow," said Mr. Gilbert, directly, "if you still consider it to your interest to keep your invention a secret, I wish you had never made it. No one having a machine like that can help using it, and it is often quite as bad to be considered a maniac as to be one."

"My friend," I cried, with some excitement, "I have made up my mind on this subject. The little machine in this knapsack, which is the only one I now possess, has been a great pleasure to me. But I now know it has also been of the greatest injury indirectly to me and mine, not to mention some direct inconvenience and danger, which I will speak of another time. The secret lies with us three, and we will keep it. But the invention itself is too full of temptation and danger for any of us."

As I said this I held the knapsack with one hand while I quickly turned the screw with the other. In a few moments it was high above my head, while I with difficulty held it down by the straps. "Look!"

I cried. And then I released my hold, and the knapsack shot into the air and disappeared into the upper gloom.

I was about to make a remark, but had no chance, for my wife threw herself upon my bosom, sobbing with joy.

"Oh, I am so glad--so glad!" she said. "And you will never make another?"

"Never another!" I answered.

"And now let us hurry in and see Janet," said my wife.

"You don't know how heavy and clumsy I feel," said Mr. Gilbert, striving to keep up with us as we walked back. "If I had worn that thing much longer, I should never have been willing to take it off!"

Janet had retired, but my wife went up to her room.

"I think she has felt it as much as our boy," she said, when she rejoined me. "But I tell you, my dear, I left a very happy girl in that little bedchamber over the garden."

And there were three very happy elderly people talking together until quite late that evening. "I shall write to Herbert to-night,"

I said, when we separated, "and tell him to meet us all in Geneva.

It will do the young man no harm if we interrupt his studies just now."

"You must let me add a postscript to the letter," said Mr. Gilbert, "and I am sure it will require no knapsack with a screw in the back to bring him quickly to us."

And it did not.

There is a wonderful pleasure in tripping over the earth like a winged Mercury, and in feeling one's self relieved of much of that attraction of gravitation which drags us down to earth and gradually makes the movement of our bodies but weariness and labor. But this pleasure is not to be compared, I think, to that given by the buoyancy and lightness of two young and loving hearts, reunited after a separation which they had supposed would last forever.

What became of the basket and the knapsack, or whether they ever met in upper air, I do not know. If they but float away and stay away from ken of mortal man, I shall be satisfied.

And whether or not the world will ever know more of the power of negative gravity depends entirely upon the disposition of my son Herbert, when--after a good many years, I hope--he shall open the packet my lawyers have in keeping.

[NOTE.--It would be quite useless for any one to interview my wife on this subject, for she has entirely forgotten how my machine was made. And as for Mr. Gilbert, he never knew.]

ASAPH

About a hundred feet back from the main street of a village in New Jersey there stood a very good white house. Half-way between it and the sidewalk was a large chestnut-tree, which had been the pride of Mr. Himes, who built the house, and was now the pride of Mrs. Himes, his widow, who lived there.

Under the tree was a bench, and on the bench were two elderly men, both smoking pipes, and each one of them leaning forward with his elbows on his knees. One of these, Thomas Rooper by name, was a small man with gray side-whiskers, a rather thin face, and very good clothes. His pipe was a meerschaum, handsomely colored, with a long amber tip. He had bought that pipe while on a visit to Philadelphia during the great Centennial Exposition; and if any one noticed it and happened to remark what a fine pipe it was, that person would be likely to receive a detailed account of the circ.u.mstances of its purchase, with an appendix relating to the Main Building, the Art Building, the Agricultural Building, and many other salient points of the great Exposition which commemorated the centennial of our national independence.

The other man, Asaph Scantle, was of a different type. He was a little older than his companion, but if his hair were gray, it did not show very much, as his rather long locks were of a sandy hue and his full face was clean shaven, at least on Wednesdays and Sundays.

He was tall, round-shouldered, and his clothes were not good, possessing very evident claims to a position on the retired list.

His pipe consisted of a common clay bowl with a long reed stem.

For some minutes the two men continued to puff together as if they were playing a duet upon tobacco-pipes, and then Asaph, removing his reed from his lips, remarked, "What you ought to do, Thomas, is to marry money."

"There's sense in that," replied the other; "but you wasn't the first to think of it."

Asaph, who knew very well that Mr. Rooper never allowed any one to suppose that he received suggestions from without, took no notice of the last remark, but went on: "Lookin' at the matter in a friendly way, it seems to me it stands to reason that when the shingles on a man's house is so rotten that the rain comes through into every room on the top floor, and when the plaster on the ceilin' is tumblin'

down more or less all the time, and the window-sashes is all loose, and things generally in a condition that he can't let that house without spendin' at least a year's rent on it to git it into decent order, and when a man's got to the time of life--"

"There's nothin' the matter with the time of life," said Thomas; "that's all right."

"What I was goin' to say was," continued Asaph, "that when a man gits to the time of life when he knows what it is to be comfortable in his mind as well as his body--and that time comes to sensible people as soon as they git fairly growed up--he don't want to give up his good room in the tavern and all the privileges of the house, and go to live on his own property and have the plaster come down on his own head and the rain come down on the coverlet of his own bed."

"No, he don't," said Thomas; "and what is more, he isn't goin' to do it. But what I git from the rent of that house is what I have to live on; there's no gittin' around that pint."

"Well, then," said Asaph, "if you don't marry money, what are you goin' to do? You can't go back to your old business."

"I never had but one business," said Thomas. "I lived with my folks until I was a good deal more than growed up; and when the war broke out I went as sutler to the rigiment from this place; and all the money I made I put into my property in the village here. That's what I've lived on ever since. There's no more war, so there's no more sutlers, except away out West where I wouldn't go; and there are no more folks, for they are all dead; and if what Mrs. McJimsey says is true, there'll be no more tenants in my house after the 1st of next November. For when the McJimseys go on account of want of general repairs, it is not to be expected that anybody else will come there.

There's n.o.body in this place that can stand as much as the McJimseys can."

"Consequently," said Asaph, deliberately filling his pipe, "it stands to reason that there ain't nothin' for you to do but marry money."

Thomas Rooper took his pipe from his mouth and sat up straight.

Gazing steadfastly at his companion, he remarked, "If you think that is such a good thing to do, why don't you do it yourself? There can't be anybody much harder up than you are."

"The law's agin' my doin' it," said Asaph. "A man can't marry his sister."

"Are you thinkin' of Marietta Himes?" asked Mr. Rooper.

"That's the one I'm thinkin' of," said Asaph. "If you can think of anybody better, I'd like you to mention her."

Mr. Rooper did not immediately speak. He presently asked, "What do you call money?"

"Well," said Asaph, with a little hesitation, "considerin' the circ.u.mstances, I should say that in a case like this about fifteen hundred a year, a first-rate house with not a loose shingle on it nor a crack anywhere, a good garden and an orchard, two cows, a piece of meadow-land on the other side of the creek, and all the clothes a woman need have, is money."

Thomas shrugged his shoulders. "Clothes!" he said. "If she marries she'll go out of black, and then she'll have to have new ones, and lots of 'em. That would make a big hole in her money, Asaph."