When there is a series of phrases or clauses, each of which is long and contains commas within itself, the sentence becomes clearer if the members of the series are separated by semicolons instead of by commas; as,
You know how prolific the American mind has been in invention; how much civilization has been advanced by the steamboat, the cotton-gin, the sewing-machine, the reaping-machine, the typewriter, the electric light, the telephone, the phonograph.
Write the following from dictation:
1
No man can deny that the lines of endeavor have more and more narrowed and stiffened; no one who knows anything about the development of industry in this country can fail to have observed that the larger kinds of credit are more and more difficult to obtain, unless you obtain them upon the terms of uniting your efforts with those who already control the industries of the country; and nobody can fail to observe that any man who tries to set himself up in competition with any process of manufacture which has been taken under the control of large combinations of capital will presently find himself either squeezed out or obliged to sell and allow himself to be absorbed.—Woodrow Wilson: The New Freedom.
2
If the total amount of savings deposited in the savings banks were equally divided among the population of the country, the amount apportioned to each person in 1820 would have been twelve cents; in 1830, fifty-four cents; in 1840, eighty-two cents; in 1850, $1.87; in 1860, $4.75; in 1870, $14.26; in 1880, $16.33; in 1890, $24.75; in 1900, $31.78; in 1910, $45.05, and it is steadily increasing. Remember the fact that the population had increased from 10,000,000 in 1820 to over 90,000,000 in 1910; the "rainy day" money, therefore, assumes gigantic proportions.
3
In Germany, says The Scientific American, wood is too expensive to be burned, and it is made into artificial silk worth two dollars a pound and bristles worth four dollars a pound; into paper, yarn, twine, carpet, canvas, and cloth. Parquet flooring is made from sawdust; the materials may be bought by the pound and then mixed, so that the householder can lay his own hardwood floors according to his individual taste and ingenuity.