270 
POPULAR SCIENCE REVIEW. 
DECIMAL EQUIVALENTS OF ENGLISH AND FRENCH UNITS OF MEASURES AND 
WEIGHTS. 
British Inches 
Millimetre* 
Millimetres 
British Inches 
1 
25-39954113 
1 
•039370789 
2 
50-79908226 
2 
•078741579 
3 
76-19862339 
3 
•118112369 
4 
101-59816452 
4 
•157483159 
5 
12699770566 
5 
•196853949 
6 
152-39724679 
6 
•236224738 
7 
177-79678792 
7 
•275595528 
8 
20319633905 
8 
•314966318 
9 
223-59587018 
9 
•354337108 
10 
253-99541132 
10 
•393707898 
12 (foot) 
304-79449358 
20 
•787415796 
20 
507-99082226 
40 
1-574831592 
30 
761-98623396 
50 
1-96853949 
36 (yard) 
914-38348075 
100 
3-93707898 
40 
1015-98164528 
1000 (metre) 
3-93707898 
50 
100 
1269-977055 66 
2539-95411326 
KARATS, 
7 grains each 
Grammes 
1 T 
Grammes 
GRAINS 
1 
•453592 
1 
15-43234874 
2 
•907185 
2 
38-6469748 
3 
1-360777 
3 
46-29704622 
4 
1-814370 
4 
61-72939496 
5 
2-267963 
5 
77-1617437 
10 
4-535926 
10 
154-3234874 
20 
9071852 
11 
169-75583614 
50 
22-679632 
20 
308-6469748 
100 
45-359264 
50 
771-617437 
1000 
453-592662 
100 
1543-234874 
(one pound 
avoirdupois) 
1000 
(kilogramme) 
15432-34874 
