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Multiply 2341705 by 23870 and divide the product by 6789. Give operation in full. Question 2. Divide two hundred and five thousand two hundred and five, and two hundred and five ten-thousandths, by one hundred thousand one hundred, and one hundredth. Question 3. Multiply 10-2/3 by 7-1/8 and divide the product by 9-1/2, reducing the same to the simplest form. Give operation in full. Question 4.

Professor Langley now got heating effects from rays of above twice that wave-length, his delicate thread of platinum groping its way down nearly to thirty ten-thousandths of a millimetre, or three "microns." The known extent of the solar spectrum was thus at once more than doubled.

They're supposed to be late sixteenth-century; I doubt if they were made before 1920. As far as I can see or measure, there isn't the slightest difference between them, except on some of the decorative inlay. The whole job must have been miked in ten-thousandths, and what's more, whoever made them used metric measurements.

Although a few ten-thousandths more of carbonic acid in our air cannot of themselves endanger us, yet they have on another hand a baneful significance, and, indeed, the majority of hygienists will not tolerate more than six ten-millionths of this element in the air of dwellings, and some of them not more than five ten-millionths.

A special profit of four hundred per cent. in a society composed of say a million of men represents four ten-thousandths for each individual; while a loss to the consumer of thirty-three per cent. means a social deficit of thirty- three millions.

At the present date the International Bureau of Weights and Measures guarantees, in the determination of a standard of length compared with the metre, an approximation of two or three ten-thousandths of a millimetre, and even a little more under certain circumstances.

A owned 7/8 of a ship and sold 4/5 of his share to B, who sold 5/9 of what he bought to C, who sold 6/7 of what he bought to D. What part of the whole vessel did D buy? Give operation in full. Question 9. A man bought a cargo of wool and sold seven thousand and forty-five ten-thousandths of it. How much had he left? Give operation in full in decimal fractions. Question 10.

An enormous expansion was at once given to the invisible region in the solar spectrum below the red. Captain Abney had got chemical effects from undulations twelve ten-thousandths of a millimetre in length. These were the longest recognised as, or indeed believed, on theoretical grounds, to be capable of existing.