 | Queensland - 1911 - 598 sidor
...it into two equal parts ; measure at the middle of its height three inside breadths, namely, one at each end and the other at the middle of the length...interval between the breadths, the product will give the moan horizontal area of the space ; then measure tho mean height, and multiply by it the mean horizontal... | |
 | John H. Malcolm - 1911 - 412 sidor
...it into two equal parts; measure at the middle of its height three inside breadths, namely, one at each end and the other at the middle of the length...the middle breadth, and multiply the whole sum by one-third of the common interval between the breadths; the product will give the mean horizontal area... | |
 | United States - 1911 - 560 sidor
...and at each of the points of division, numbering them successively one, two, three, and so forth ; then to the sum of the end breadths add four times the sum of the even-numbered breadths and twice the sum of the odd-numbered breadths, except the first... | |
 | Great Britain. Board of Trade - 1917 - 86 sidor
...it into two equal parts ; measure at the middle of its height three inside breadths, namely, one at each end and the other at the middle of the length...the middle breadth, and multiply the whole sum by one-third of the common interval between the breadths; the product will give the mean horizontal area... | |
 | Emory Richard Johnson - 1913 - 696 sidor
...sum of the end breadths add four times the middle breadth, and multiply the whole sum by one-third of the common interval between the breadths; the product...space; then measure the mean height, and multiply by it the mean horizontal area; divide the product by 100, or by 2.83 if the measurements are taken in meters,... | |
 | Emory Richard Johnson - 1913 - 718 sidor
...namely, one at each end and at each of the points of division, numbering them successively 1, 2, 3, etc.; then to the sum of the end breadths add four times the sum of the evennumbered breadths and twice the sum of the odd-numbered breadths, except the first and... | |
 | United States - 1914 - 592 sidor
...it into two equal parts; measure at the middle of its height three inside breadths, namely, one at each end and the other at the middle of the length;...the middle breadth, and multiply the whole sum by one-third of the common interval between the breadths; the product will give tho mean horizontal area... | |
 | 1914 - 438 sidor
...it into two equal parts; measure at the middle of its height three inside breadths, namely, one at each end and the other at the middle of the length;...the middle breadth, and multiply the whole sum by one-third of the common interval between the breadths; the product will give the mean horizontal area... | |
 | United States - 1915 - 1280 sidor
...it into two equal parts; measure at the middle of its height three inside breadths, namely, one at each end and the other at the middle of the length;...the middle breadth, and multiply the whole sum by one-third of the common interval between the breadths; the product will give the mean horizontal area... | |
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... and multiply the whole sum by one-third of the common interval between the breadths; the product will give the mean horizontal area of such space; then measure the mean height, and... 
