CHAPTER XI

ALONG THE CANAL

"Blake, did you hear that?" asked Joe, after a pause, during which

he and his chum could hear the low buzz of conversation from the

other balcony.

"Yes, I heard it. What of it?"

"Well, nothing that I know of, and yet--"

"Yet you're more suspicious than I was," broke in Blake. "I don't

see why."

"I hardly know myself," admitted Joe. "Yet, somehow, that ticking

box, and what you saw in that letter--"

"Oh, nonsense!" interrupted Blake. "Don't imagine too much. You

think that curious box is some attachment for a moving picture

camera; do you?"

"Well, it might be, and--"

"And you're afraid he will get ahead of you in your invention of a

focus tube; aren't you?" continued Blake, not giving his companion

a chance to finish what he started to say. For Joe had recently

happened to hit on a new idea of a focusing tube for a moving

picture camera, and had applied for a patent on it. But there was

some complication and his papers had not yet been granted. He was

in fear lest someone would be granted a similar patent before he

received his.

"Oh, I don't know as I'm afraid of that," Joe answered slowly.

"Well, it must be that--or something," insisted Blake. "You hear

Alcando and someone else talking about a machine, and you at once

jump to the conclusion that it's a camera."

"No, I don't!" exclaimed Joe. He did not continue the conversation

along that line, but he was doing some hard thinking.

Later that evening, when Mr. Alcando called at the room of the two

chums to bid them goodnight, he made no mention of his visitor on

the balcony. Nor did Blake or Joe question him.

"And we start up the Canal in the morning?" asked the Spaniard.

"Yes, and we'll make the first pictures going through the Gatun

locks," decided Blake.

"Good! I am anxious to try my hand!" said their "pupil."

With their baggage, valises, trunks, cameras, boxes of undeveloped

film, other boxes to hold the exposed reels of sensitive

celluloid, and many other things, the moving picture boys and Mr.

Alcando went aboard the government tug _Nama_ the next morning.

With the exception of some Army engineers making a trip of

inspection, they were the only passengers.

"Well, are you all ready, boys?" asked the captain, for he had

been instructed by his superiors to show every courtesy and

attention to our heroes. In a sense they were working for Uncle

Sam.

"All ready," answered Blake.

"Then we'll start," was the reply. "I guess--"

"Oh, one moment, I beg of you!" cried Mr. Alcando. "I see a friend

coming with a message to me," and he pointed along the pier, where

the tug was tied. Coming on the run was a man who bore every

appearance of being a Spaniard.

"You are late," complained Mr. Alcando, as the runner handed him a

letter. "You almost delayed my good friend, the captain of this

tug."

"I could not help it," was the answer. "I did not receive it

myself until a few minutes ago. It came by cable. So you are off?"

"We are off!" answered Mr. Alcando.

Then the other spoke in Spanish, and later on Blake, who undertook

the study of that language so as to make himself understood in a

few simple phrases knew what it was that the two men said. For

the runner asked:

"You will not fail us?"

"I will not fail--if I have to sacrifice myself," was the answer

of Mr. Alcando, and then with a wave of his hand the other went

back up the pier.

"All right?" again asked Captain Watson.

"All right, my dear sir, I am sorry to have delayed you," answered

Mr. Alcando with more than his usual politeness.

"A little delay doesn't matter. I am at your service," the

commander said. "Well, now we'll start."

If either Blake or Joe felt any surprise over the hurried visit,

at the last minute, of Mr. Alcando's friend, they said nothing to

each other about it. Besides, they had other matters to think of

just then, since now their real moving picture work was about to

begin.

In a short time they were moving away from the pier, up the harbor

and toward the wonderful locks and dam that form the amazing

features (aside from the Culebra Cut) of the great Canal.

"Better get our cameras ready; hadn't we, Blake?" suggested Joe.

"I think so," agreed his chum. "Now, Mr. Alcando, if you want to

pick up any points, you can watch us. A little later we'll let you

grind the crank yourself."

I might explain, briefly, that moving pictures are taken not by

pressing a switch, or a rubber bulb, such as that which works a

camera shutter, but by the continuous action of a crank, or

handle, attached to the camera. Pressing a bulb does well enough

for taking a single picture, but when a series, on a long

celluloid strip, are needed, as in the case for the "movies," an

entirely different arrangement becomes absolutely necessary.

The sensitive celluloid film must move continuously, in a somewhat

jerky fashion, inside the dark light-tight camera, and behind the

lens. As each picture, showing some particular motion, is taken,

the film halts for the briefest space of time, and then goes on,

to be wound up in the box, and a new portion brought before the

lens for exposure.

All this the crank does automatically, opening and closing the

shutter, moving the film and all that is necessary.

I wish I had space, not only to tell you more of how moving

pictures are made, but much about the Panama Canal. As to the

former--the pictures--in other books of this series I have done

my best to give you a brief account of that wonderful industry.

Now as to the Canal--it is such a vast undertaking and subject

that only in a great volume could I hope to do it justice. And in

a story (such as this is intended to be), I am afraid you would

think I was trying to give you pretty dry reading if I gave you

too many facts and figures.

Of course many of you have read of the Canal in the

newspapers--the controversy over the choice of the route, the

discussion as to whether a sea level or a lock canal was best, and

many other points, especially whether the Gatun Dam would be able

to hold back the waters of the Chagres River.

With all that I have nothing to do in this book, but I hope you

will pardon just a little reference to the Canal, especially the

lock features, since Joe and Blake had a part in at least filming

those wonderful structures.

You know there are two kinds of canals, those on the level, which

are merely big over-grown ditches, and those which have to go over

hills and through low valleys.

There are two ways of getting a canal over a hill. One is to build

it and let the water in to the foot of the hill, and then to raise

vessels over, the crest of the hill, and down the other side to

where the canal again starts, by means of inclined planes, or

marine railways.

The other method is by "locks," as they are called. That is, there

are built a series of basins with powerful, water-tight gates

dividing them. Boys who live along canals well know how locks

work.

A boat comes along until it reaches the place where the lock is.

It is floated into a basin, or section, of the waterway, and a

gate is closed behind it. Then, from that part of the canal which

is higher than that part where the boat then is, water is admitted

into the basin, until the boat rises to the level of the higher

part of the canal. Then the higher gate is opened, and the vessel

floats out on the higher level. It goes "up hill," so to speak.

By reversing the process it can also go "down hill." Of course

there must be heavy gates to prevent the higher level waters from

rushing into those of the lower level.

Some parts of the Panama Canal are eighty-five feet higher than

other parts. In other words, a vessel entering the Canal at Colon,

on the Atlantic side of the Isthmus, must rise eighty-five feet to

get to the level of Gatun Lake, which forms a large part of the

Canal. Then, when the Pacific end is approached, the vessel must

go down eighty-five feet again, first in one step of thirty and a

third feet, and then in two steps, or locks, aggregating

fifty-four and two-thirds feet. So you see the series of locks at

either end of the great Canal exactly balance one another, the

distance at each end being eighty-five feet.

It is just like going up stairs at one end of a long board walk

and down again at the other end, only the steps are of water, and

not wood.

The tug bearing Blake, Joe and Mr. Alcando was now steaming over

toward Toro Point break-water, which I have before alluded to.

This was built to make a good harbor at Colon, where violent

storms often occur.

"I want to get some pictures of the breakwater," Blake had said,

since he and his chum were to present, in reels, a story of a

complete trip through the Canal, and the breakwater was really the

starting point. It extends out into the Caribbean Sea eleven

thousand feet.

"And you are taking pictures now?" asked Mr. Alcando, as Blake and

Joe set up a camera in the bow of the boat.

"That's what we're doing. Come here and we'll give you lesson

number one," invited Blake, clicking away at the handle. "I will

gladly come!" exclaimed the Spaniard, and soon he was deep in the

mysteries of the business.

There was not much delay at the breakwater, as the boys were

anxious to get to the Canal proper, and into the big locks. A

little later their tug was steaming along the great ditch, five

hundred feet wide, and over forty feet deep, which leads directly

to the locks. This ditch, or start of the Canal proper, is about

seven miles long, and at various points of interest along the way

a series of moving pictures was taken.

"And so at last we are really on the Panama Canal!" cried Joe as

he helped Blake put in a fresh reel of unexposed film, Mr. Alcando

looking on and learning "points."

"That's what you are," the captain informed them, "and, just ahead

of you are the locks. Now you'll see something worth 'filming,' as

you call it."

The moving picture boys at Panama · 第 11 / 25 章