The Weathercock Part 24

"Blunders and mistakes, I suppose, in things you have tried to make?"

"Yes."

"Show me."

Vane would far rather have led their visitor in another direction, but there was a masterful decided way about him that was not to be denied, and the lad led him into the large shed which had been floored with boards and lined, so as to turn it into quite a respectable workshop, in which were, beside a great heavy deal table in the centre, a carpenter's bench, and a turning lathe, while nails were knocked in everywhere, shelves ran from end to end, and the place presented to the eye about as strange a confusion of odds and ends as could have been seen out of a museum.

Vane looked at the visitor as he threw open the door, expecting to hear a derisive burst of laughter, but he stepped in quietly enough, and began to take up and handle the various objects which took his attention, making remarks the while.

"You should not leave your tools lying about like this: the edges get dulled, and sometimes they grow rusty. Haven't you a tool-chest?"

"There is uncle's old one," said Vane.

"Exactly. Then, why don't you keep them in the drawers?--Humph!

Galvanic battery!"

"Yes; it was uncle's."

"And he gives it to you to play with, eh?"

Vane coloured again.

"I was trying to perform some experiments with it."

"Oh, I see. Well, it's a very good one; take care of it. Little chemistry, too, eh?"

"Yes: uncle shows me sometimes how to perform experiments."

"But he does not show you how to be neat and orderly."

"Oh, this is only a place to amuse oneself in!" said Vane.

"Exactly, but you can get ten times the amus.e.m.e.nt out of a shop where everything is in its place and there's a place for everything. Now, suppose I wanted to perform some simple experiment, say, to show what convection is, with water, retort and spirit lamp?"

"Convection?" said Vane, thoughtfully, as if he were searching in his mind for the meaning of a word he had forgotten.

"Yes," said the visitor, smiling. "Surely you know what convection is."

"I've forgotten," said Vane, shaking his head. "I knew once."

"Then you have not forgotten. You've got it somewhere packed away.

Head's untidy, perhaps, as your laboratory."

"I know," cried Vane--"convection: it has to do with water expanding and rising when it is hot and descending when it is cold."

"Of course it has," said the visitor, laughing, "why you were lecturing me just now on the art of heating greenhouses by hot-water circulating through pipes; well, what makes it circulate?"

"The heat."

"Of course, by the law of convection."

Vane rubbed one ear.

"You had not thought of that?"

"No."

"Ah, well, you will not forget it again. But, as I was saying--suppose I wanted to try and perform a simple experiment to prove, on a small scale, that the pipes you are designing would heat. I cannot see the things I want, and I'll be bound to say you have them somewhere here."

"Oh, yes: I've got them all somewhere."

"Exactly. Take my advice, then, and be a little orderly. I don't mean be a slave to order. You understand?"

"Oh, yes," said Vane, annoyed, but at the same time pleased, for he felt that the visitor's remarks were just.

"Humph! You have rather an inventive turn then, eh?"

"Oh, no," cried Vane, disclaiming so grand a term, "I only try to make a few things here sometimes on wet days."

"Pretty often, seemingly," said the visitor, peering here and there.

"Silk-winding, collecting. What's this? Trying to make a steam engine?"

"No, not exactly an engine; but I thought that perhaps I might make a little machine that would turn a wheel."

"And supply you with motive-power. Well, I will tell you at once that it would not."

"Why not?" said Vane, with a little more confidence, as he grew used to his companion's abrupt ways.

"Because you have gone the wrong way to work, groping along in the dark.

I'll be bound to say," he continued, as he stood turning over the rough, clumsy contrivance upon which he had seized--a bit of mechanism which had cost the boy a good many of his s.h.i.+llings, and the blacksmith much time in filing and fitting in an extremely rough way--"that Newcomen and Watt and the other worthies of the steam engine's early days. .h.i.t upon exactly the same ideas. It is curious how men in different places, when trying to contrive some special thing, all start working in the same groove."

"Then you think that is all stupid and waste of time, sir?"

"I did not say so. By no means. The bit of mechanism is of no use-- never can be, but it shows me that you have the kind of brain that ought to fit you for an engineer, and the time you have spent over this has all been education. It will teach you one big lesson, my lad. When you try to invent anything again, no matter how simple, don't begin at the very beginning, but seek out what has already been done, and begin where others have left off--making use of what is good in their work as a foundation for yours."

"Yes, I see now," said Vane. "I shall not forget that."

Their visitor laughed.

"Then you will be a very exceptional fellow, Vane Lee. But, there, I hope you will not forget. Humph!" he continued, looking round, "You have a capital lot of material here: machinery and toys. No, I will not call them toys, because these playthings are often the parents of very useful machines. What's that--balloon?"

"An attempt at one," replied Vane.

"Oh, then, you have been trying to solve the flying problem."

"Yes," cried Vane excitedly; "have you?"

"Yes, I have had my season of thought over it, my lad; and I cannot help thinking that it will some day be mastered or discovered by accident."