TO CHANGE COMMON FRACTIONS TO DECIMALS.
Annex one or more ciphers to the numerator and divide by the
denominator.
_Example_. Change 3/4 to a decimal. Ans. .75.
We add two ciphers to the 3, making it 300, and divide by 4, which
gives us.75. In the same way 1/2 =.5, or 3/4 =.75, and so on. When a
quantity is in dollars and fractions of a dollar, the fractions should
always be thus reduced to cents and mills.
* * * * *
TWENTY THOUSAND THINGS WORTH KNOWING.
RELATIVE HARDNESS OF WOODS.
Taking shell bark hickory as the highest standard of our forest trees,
and calling that 100, other trees will compare with it for hardness as
follows:
Shell Bark Hickory 100
Pignut Hickory 96
White Oak 84
White Ash 77
Dogwood 75
Scrub Oak 73
White Hazel 72
Apple Tree 70
Red Oak 69
White Beech 65
Black Walnut 65
Black Birch 62
Yellow Oak 60
Hard Maple 56
White Elm 58
Red Cedar 56
Wild Cherry 55
Yellow Pine 54
[Transcriber's Note: The original text reads 'Chesnut']
Chestnut 52
Yellow Poplar 51
[Transcriber's Note: The original text reads 'Buternut']
Butternut 43
White Birch 43
White Pine 30
Timber intended for posts is rendered almost proof against rot by
thorough seasoning, charring and immersion in hot coal tar.
Pages:
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490