Buch 
Astronomy explained upon Sir Isaac Newton's principles, and made easy to those who have not studied mathematics. To which are added, a plain method of finding the distances of all the planets from the sun, by the transit of venus over the sun's disc, in the year 1761 ... / by James Ferguson
Entstehung
JPEG-Download
 

4 >

102

Avoirdupoise Weight reduced into Troyl

A Table for reducing Avoirdupoise weight into Troy weight.

Avoirdupoise

Troy weight.

Avoisd.

. 'i roy weight.

weight.

lb.

oz,

pwi

gr-

weight.

lb. oz.

pw.

gr-

Ppunds 6000

7291

8

0

0

Ounces

15

t 1

13

10.50

5000

6076

4

13

8

*4

1 0

!5

5

4000

4861

1

6

16

'3

11

16

23-50

3000

Z645

10

0

0

12

10

18

18

2000

2430

6

13

8

11

10

0

12.50

1000

12x5

3

6

16

10

9

2

7

900

i °93

9

0

Q

9

8

4

1.50

800

972

2

13

8

8

7

5

20

700

850

8

6

16

7

6

7

14.50

600

729

2

0

0

6

5

9

9

500

607

7

13

8

5

4

11

3-50

400

486

1

6

16

4

3

12

22

3 00

3b4

7

0

0

3

2

14

16.50

200

24Z

0

13

8

2

1

16

11

IOO

I 2 l

6

6

16

1

0

18

5-50

90

IO9

4

10

v

Drams

17

2.10

« V . 80

97

2

i3

8

*4

J 5

- 22.76

; 70

85

0

16

16

J 3

H

19.42

60

72

11

0

c>

12

13

15.08

5 °

60

* 9

3

8

I I

12

12.74

4 °

48

7

6

16

IO

11

9.40

3°

36

5

10

0

9

10

6.06

; 20

24

3

13

8

8

9

2.72

10

12

1

16

16

7

7

23.38

! 9

IO

11

5

0

6

6

20.04

8

9

8

*3

8

5

5

16.70

7

8

6

1

16

4

4

13-36

6

7

3

10

0

3

3

10.02

5

6

0

18

8

2

2

6.68

4

4

10

6

16

1

1

3-34

3

3

7

15

0

3

T

0

20.51

2

2

5

3

8

4 r

13-67

1

1

2

11

16

*

6.83

The two following examples will be sufficient to explain these twotables, and ffiew their agreement.

Ex. I