I pulled out the rest of the stuff; there was a complete heliograph apparatus, and a little red cap, such as the Algerians wear, satisfying us both that the man doing the work used the uniform of an Algerian.
There remained still the case of the old man in whose house we had discovered the heliograph and the pigeons.
An old table in the middle of the room I pulled over to the chimney, tugged at some of the brick that I had noticed, and the whole thing caved in, part of a heliograph outfit falling out.
Huey The heliograph which is used in the army provides a good method of sending messages by the reflection of the sun's rays.
Illustration: The Heliograph as It is Used by Neighboring Boys to Send Messages on a Clear Day by Flashing the Sun's Rays from One to the Other, Which can be Read as Far as the Eye can See the Light] How to Make a Heliograph By R.
The wireless telegraph delivers messages by electricity through the air, but the heliograph sends them by flashes of light.
In the mountains there are stations from which messages are sent by the heliograph for great distances, and guides carry them for use in case of trouble or accident.
Efforts to signal to Ladysmith by heliograph still continued to fail, at least to reach those for whom the display was intended, though the Boer heliograph graciously acknowledged the communication.
Communication with Ladysmith by heliograph was soon successfully established, much to the consternation of the Boers at Colenso, who tried their best to interfere with messages.
One of the men there, a reservist he said he was, told my brother he had seen the heliograph flickering in the west.
I told him it was the heliograph signalling--that it was the sign of human help and effort in the sky.
So when Roger had packed the little heliograph instrument in as small compass as possible, in order that it might not be ungainly in the saddle, and gone to the edge of the Canyon to look over, the scene struck him with loneliness.
The only way in which this can be done is to flash a heliograph message to me, at a certain time on a certain day, in the way I showed you last week.
That meal done, he sat beside his heliograph to await the time.
But remember, you are still under my direction, and all this is merely incidental to the main piece of work I require of you, and that is, the heliograph signal on October 21st.
The nearest post that could give me orders was fifteen miles away, and we used to heliograph to them, and they used to give us orders same way - too many orders.
Sir George, in reply, reported by heliograph that he proposed to sally out from Ladysmith the night before the relieving force attempted its crossing of the Tugela at Potgieters, and to "work towards you as far as I can.
The only heliograph with the column had vanished in the stampede, and Carleton, encircled by musketry, knew that he was as powerless to obey the order as to acknowledge it.
Sabine told me there'd been a tremendous storm in the south just before we left Algiers, and the heliograph tower at Toudja was struck by lightning.
They'll build it up again soon, for all these heliograph stations are supposed to be kept in order, in case of any revolt; for the first thing a rebellious tribe does is to cut the telegraph wires.
Stephen retired from the argument, and mounted a steep, rough stairway, close to the gate, which led to the flat top of the wall, and had formerly been connected by a platform with the ruined heliograph tower.
The railroad introduced the semaphore as a signal, and field tactics the heliograph or reflecting mirror which, however, is only of service when there is a strong sunlight.
Then by using it in the spectro-heliograph we have been enabled to photograph the entire visible surface of the sun, together with the prominences at one time.
Through the spectro-heliograph we know much more about what the central body of our system is doing than our theories can explain.
Rather it was the reflection of the sun's rays on a heliograph mirror.
Quite sure you couldn't make head nor tail out of their heliograph signals, eh?
Just as orders reached Longido Mountain by heliograph directing Captain Kraut to move off to Moshi, the first shell arrived.
The heliograph communication with Lolkisale from the south-west had then been interrupted.
The repeated attempts to establish communication with Wahle’s force by means of the heliograph did not succeed, although the Portuguese in the Mkula mountains had clearly observed our signals from Nangwale.
The communication by heliographfrom Iringa to Langenburg was too unreliable to be considered an efficient substitute.
Lieutenant Magill took possession of the heliograph outfit without the loss or injury of a man.
They had advanced but a short distance when they came to a heliograph station guarded by a company of Spaniards.
They worked out a heliograph code that day, and they planned an exploring trip to Taylor Rock the next time Jack was relieved.
She would like to have sent Jack a heliograph message, but she did not dare with the professor prowling around hunting dry limbs and bark.
That, of course, was the boy in him rising to the bait of a secret cave in the mountains, and exchanging heliograph signals with the heroine of the adventure, and lying upon a ledge before his cave watching for enemies.
From the top of Observation Hill I again watched the Dutch in their clustered camps, fourteen miles away across the great plain, whilst our heliograph flashed to us from the dark hill beyond them.
This morning the General offered the use of the heliograph to all correspondents in rotation by ballot.
The heliograph brought a message of thanks from Lord Roberts for our "heroic, splendid defence.
The heat was intense, but the sun so splendid that I have hopes my heliograph message got through at last.
Nearly all day the heliograph was flashing to us from that far-off hill.
There was no heliograph to cheer us up, and hardly a sound of distant guns.
The heliograph briefly told the story; the central hill captured by the British on Wednesday afternoon, recaptured at night by the Boers, and held by them ever since.
I went up this morning and stood on Signal Hill where the heliograph was working yesterday, just above the camp.
Again the sky was clouded, and except during an hour's sunshine in the afternoon no heliograph could work.
Good news came through the heliograph about General Gatacre's force at Dordrecht.
The heliograph below refused to take or send messages, and we had no definite news.
A cool and cloudy sky made the heliograph useless, but in the night the clouds had served to reflect the brilliance of Buller's searchlight.
A British heliograph began flashing to us from Schwarz Kop, a hill only one and a half miles over Potgieter's or Springfield Drift on the Tugela.
On a low black hill beyond its banks I could see the British heliograph flashing.
Rain fell, and though the air afterwards was strangely clear, the heliograph could not be used till the afternoon.
With the consent of the Royal Society and of the Kew Committee, the Kew Heliographhas been planted in the new dome looking over the South Ground.
As the midday gun was fired in the cantonment the flash of the heliograph from the peak told that the Takht-i-Shah was won.
It was not until the morning of the 12th that Baker was informed by heliograph from Sherpur of the occurrences of the previous day, and received directions to return to the cantonment without delay.
In half an hour from the time of leaving camp the signal-station was in the hands of the Americans, and the heliograph outfit lost to the enemy.
When circumstances permit, the heliograph is sometimes used.
Giraffe is a pretty good hand at heliograph work and all kinds of wigwagging, you know.
Lane confined himself to terse winkings that would have been gruff were it possible for a heliograph to be gruff.
The heliograph skated on its spider legs, went over the edge of the roof, and, after a hushed moment of drop, crashed upon the ledge with shiver and tinkle of flying glass.
When I set up my heliograph he kicked it off the roof.
The fire-lookout at the Attean station winked this ditty humorously with playful heliograph to "Ladder" Lane, lookout on the high, bald poll of old Jerusalem Knob.
Lane, without bestowing a glance on the speaker, was setting up his heliograph tripod.
If there is no sun I cannot heliograph and I have a host of signals to look up and get ready.
Of course it is all prearranged who should be notified in case a fire is reported to the heliograph man.
Very often these heliograph stations are located on mountain tops in the midst of extremely inaccessible country.
For long his heliograph winked and flashed without attracting any notice, and all grew impatient.
From Spearman's Hill the Ladysmith heliograph could be seen endeavouring to call up the British.
The telegraph line from Magersfontein to Bloemfontein was broken, and Cronje left without other means of communication than those the heliograph afforded.
Experiments with the heliograph with a view to its adoption as a part of the visual signaling equipment of the United States Army were commenced as early as 1878.
The service heliograph equipment of the Signal Corps consists of: A sole-leather pouch with shoulder strap containing-- 1 sun mirror.
Dark backgrounds should, when practicable, be selected for heliograph stations, as the signals can be most easily distinguished against them.
The space is made on the heliograph as in ordinary telegraphy by the absence of any signals for a period equal to the time of one dot.
This form of lantern can be used with the regular heliograph tripod, the generator being either attached to the back of the lantern or suspended, as shown in figure 4.
The heliograph is an instrument designed for the purpose of transmitting signals by means of the sun's rays.
Sunlight conditions permitting, the heliograph will ordinarily be used for day signaling on account of the advantages of the great range and speed afforded by it.
Heliograph signals are transient signals, while signals made by code flags are permanent signals.
There are two ways of assembling theheliograph and the position of the sun is the guide in determining which of the two should, in any given case, be employed.
The early English heliograph was not provided with a shutter, the flash being directed on the distant station by means of a movable mirror controlled by a key.
Smoked or colored glasses are issued for the purpose of relieving the strain on the eyes produced by reading heliograph signals.
The heliograph was set to work, and Pearson replied that he should certainly come out to meet Lord Chelmsford and his party.
These, after puzzling many of the officers and soldiers, were at length brought under the notice of an officer of the naval brigade, whose education in the use of the heliograph enabled him at once to explain the apparent mystery.
