| £1 | = 18·2 kroner | 1 krone | = 1/1¼ about |
| £1 | = 20·4 marks | 1 mark | = -/11¾ about |
Austria, &c.| £1= | { 24 kronen | 1 krone | = -/10 |
| { 10·2 florins or gulden | 1 florin or gulden | = 1/11½ |
1 kilogramme = 2·2046 pounds avoirdupois.
In trade 1 kilogramme is reckoned 10 per cent. more than 2lb.
11lb. = 5 kilogrammes.
Temperature falls about
1° Fahrenheit for every 300ft. rise
or, say,
1° Cent. for every 200 metres.
THERMOMETER.
Comparison between Scales of Fahrenheit, Réaumur, and the Centigrade.
| Cent. | Fah’t. | Rmr. |
|---|
| ° | ° | ° |
|---|
| 100B. | 212B. | 80B. |
| 99 | 210·2 | 79·2 |
| 98 | 208·4 | 78·4 |
| 97 | 206·6 | 77·6 |
| 96 | 204·8 | 76·8 |
| |
| 95 | 203 | 76 |
| 94 | 201·2 | 75·2 |
| 93 | 199·4 | 74·4 |
| 92 | 197·6 | 73·6 |
| 91 | 195·8 | 72·8 |
| |
| 90 | 194 | 72 |
| 89 | 192·2 | 71·2 |
| 88 | 190·4 | 70·4 |
| 87 | 188·6 | 69·6 |
| 86 | 186·8 | 68·8 |
| |
| 85 | 185 | 68 |
| 84 | 183·2 | 67·2 |
| 83 | 181·4 | 66·4 |
| 82 | 179·6 | 65·6 |
| 81 | 177·8 | 64·8 |
| |
| 80 | 176 | 64 |
| 79 | 174·2 | 63·2 |
| 78 | 172·4 | 62·4 |
| 77 | 170·6 | 61·6 |
| 76 | 168·8 | 60·8 |
| |
| 75 | 167 | 60 |
| 74 | 165·2 | 59·2 |
| 73 | 163·4 | 58·4 |
| 72 | 161·6 | 57·6 |
| 71 | 159·8 | 56·8 |
| |
| 70 | 158 | 56 |
| 69 | 156·2 | 55·2 |
| 68 | 154·4 | 54·4 |
| 67 | 152·6 | 53·6 |
| 66 | 150·8 | 52·8 |
| |
| 65 | 149 | 52 |
| 64 | 147·2 | 51·2 |
| 63 | 145·4 | 50·4 |
| 62 | 143·6 | 49·6 |
| 61 | 141·8 | 48·8 |
| |
| 60 | 140 | 48 |
| 59 | 138·2 | 47·2 |
| 58 | 136·4 | 46·4 |
| 57 | 134·6 | 45·6 |
| 56 | 132·8 | 44·8 |
| |
| 55 | 131 | 44 |
| 54 | 129·2 | 43·2 |
| 53 | 127·4 | 42·4 |
| 52 | 125·6 | 41·6 |
| 51 | 123·8 | 40·8 |
| |
| 50 | 122 | 40 |
| 49 | 120·2 | 39·2 |
| 48 | 118·4 | 38·4 |
| 47 | 116·8 | 37·6 |
| 46 | 114·8 | 36·8 |
| |
| 45 | 113 | 36 |
| 44 | 111·2 | 35·2 |
| 43 | 109·4 | 34·4 |
| 42 | 107·6 | 33·6 |
| 41 | 105·8 | 32·8 |
| |
| 40 | 104 | 32 |
| 39 | 102·2 | 31·2 |
| 38 | 100·4 | 30·4 |
| 37 | 98·6 | 29·6 |
| 36 | 96·8 | 28·8 |
| |
| 35 | 95 | 28 |
| 34 | 93·2 | 27·2 |
| 33 | 91·4 | 26·4 |
| 32 | 89·6 | 25·6 |
| 31 | 87·8 | 24·8 |
| |
| 30 | 86 | 24 |
| 29 | 84·2 | 23·2 |
| 28 | 82·4 | 22·4 |
| 27 | 80·6 | 21·6 |
| 26 | 78·8 | 20·8 |
| |
| 25 | 77 | 20·0 |
| 24 | 75·2 | 19·2 |
| 23 | 73·4 | 18·4 |
| 22 | 71·6 | 17·6 |
| 21 | 69·8 | 16·8 |
| |
| 20 | 68 | 16 |
| 19 | 66·2 | 15·2 |
| 18 | 64·4 | 14·4 |
| 17 | 62·6 | 13·6 |
| 16 | 60·8 | 12·8 |
| |
| 15 | 59 | 12 |
| 14 | 57·2 | 11·2 |
| 13 | 55·4 | 10·4 |
| 12 | 53·6 | 9·6 |
| 11 | 51·8 | 8·8 |
| |
| 10 | 50 | 8 |
| 9 | 48·2 | 7·2 |
| 8 | 46·4 | 6·4 |
| 7 | 44·6 | 5·6 |
| 6 | 42·8 | 4·8 |
| |
| 5 | 41 | 4 |
| 4 | 39·2 | 3·2 |
| 3 | 37·4 | 2·4 |
| 2 | 35·6 | 1·6 |
| 1 | 33·8 | 0·8 |
| |
| Zero | 32 | Zero |
| 1 | 30·2 | 0·8 |
| 2 | 28·4 | 1·6 |
| 3 | 26·6 | 2·4 |
| 4 | 24·8 | 3·2 |
| |
| 5 | 23 | 4 |
| 6 | 21·2 | 4·8 |
| 7 | 19·4 | 5·6 |
| 8 | 17·6 | 6·4 |
| 9 | 15·8 | 7·2 |
| |
| 10 | 14 | 8 |
| 11 | 12·2 | 8·8 |
| 12 | 10·4 | 9·6 |
| 13 | 8·6 | 10·4 |
| 14 | 6·8 | 11·2 |
| |
| 15 | 5 | 12 |
| 16 | 3·2 | 12·8 |
| 17 | 1·4 | 13·6 |
| 18 | — | 14·4 |
| 19 | 2·2 | 15·2 |
| |
| 20 | 4 | 16 |
| 21 | 5·8 | 16·8 |
| 22 | 7·6 | 17·6 |
| 23 | 9·4 | 18·4 |
| 24 | 11·2 | 19·2 |
| |
| 25 | 13 | 20 |
| 26 | 14·8 | 20·8 |
| 27 | 16·6 | 21·6 |
| 28 | 18·4 | 22·4 |
| 29 | 20·2 | 23·2 |
| |
| 30 | 22 | 24 |
| 31 | 23·8 | 24·8 |
| 32 | 25·6 | 25·6 |
| 33 | 27·4 | 26·4 |
| 34 | 29·2 | 27·2 |
| |
| 35 | 31 | 28 |
| 36 | 32·8 | 28·8 |
| 37 | 24·6 | 29·6 |
| 38 | 36·4 | 29·6 |
| 39 | 38·2 | 31·2 |
| |
| 40 | 40 | 32 |
| 41 | 41·8 | 32·8 |
| 42 | 43·6 | 33·6 |
| 43 | 45·4 | 34·4 |
| 44 | 47·2 | 35·2 |
| |
| 45 | 49 | 36 |
| 46 | 50·8 | 36·8 |
| 47 | 52·6 | 37·6 |
| 48 | 54·4 | 38·4 |
| 49 | 56·2 | 39·2 |