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Updated: June 3, 2025
He made sure that the sun had swung around so it would not shine on the lenses and betray him by any heliographic reflection, and focussed his glasses upon the two. He saw as well as heard Helen May laugh, and he scowled over it. But mostly he studied the man. "All right for you, old boy," he muttered. "I don't know who the devil you are, but I don't like your looks."
Half an hour after we saw the enemy's carts go back. I sent a heliographic message to General Muller, with whom I had kept in close contact, to the effect that they were moving away their carts and that we ought to try and charge them on all points as well as we could. "All right," he answered; "shall we start at once?" I flashed back "Yes," and ordered a general charge.
He was coming now within touch of French's cavalry, operating from Middelburg, and on the 14th heliographic communication was established with Gordon's Brigade. Buller's column had come nearer to its friends, but it was also nearer to the main body of Boers who were waiting in that very rugged piece of country which lies between Belfast in the west and Machadodorp in the east.
The bromides, in solution, are readily decomposed and chloride being set free, colors the liquid brown. In the whole range of heliographic chemicals there is probably not another collection less understood and being so productive of interesting investigation as the bromides. Bromide of Iodine.
The Suprasl was crossed by the entire 4th Cavalry Division swimming. In order to acquire a thorough knowledge of pioneer duty, both the officers and non-commissioned officers of cavalry are attached to the engineer camp for a short course of instruction. In one division a regular pioneer squadron has been formed for telegraphic and heliographic duty.
In the north-west the Boers were flashing an electric searchlight, apparently from a railway truck on the Harrismith line. The nation of farmers is not much behind the age. They will be sending up a balloon next. November 21, 1899. The desultory bombardment went on as usual, except that "Long Tom" did not fire. The Staff is said to have lost heliographic communication with the south.
Wristlets, watches, spy-glasses, chocolate, cigarettes, were now as common as in ordinary times they were rare. Heliographic and telegraphic instruments by the cartload. No doubt about it, Roodewal came at an opportune moment. Roberts was pressing Botha hard in front, and this stunning blow at his lines of communication compelled him to pause.
Warrender, though full of observation, never noticed this telegraphic, or shall we say heliographic, communication at all. This little hindrance only made them better friends. They made expeditions to Richmond, where Dick took the ladies out on the river; to Windsor and Eton, where Theo and he had both been to school.
All other instruments of war were at their command; they had artillery superior for the most part to, and better served than, that of the English; they had telegraphic and heliographic apparatus; but the balloons were the symbol of a scientific superiority of the English which seriously disquieted them."
The results of the calculations have hardly been encouraging to possible investors in interplanetary telegraphy, since it appears that heliographic mirrors with reflecting surfaces measured by square miles, instead of square inches, would be required to send a visible beam from the earth to Mars or vice versa. The projections of light on Mars can be explained much more simply and reasonably.
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