GOOD FOOD. 
15 
tliat a Imniaii body weighing eleven stones_, or 154 ponnds_, 
contains the following compounds and elements : — 
COMPOUNDS. 
ELEMENTS. 
1 
1 
lb. 
oz. 
gr- 
lb. 
oz. 
gr. 
Water... 
Ill 
0 
0 
Oxygen 
... Ill 
0 
0 
Gelatin 
15 
0 
0 
Hydrogen 
... 14 
0 
0 
Fat 
12 
0 
0 
Carbon 
... 21 
0 
0 
Albumen 
4 
3 
0 
Nitrogen 
... 3 
8 
0 
Fibrine 
4 
4 
0 
Phosphorus 
1 
12 
190 
Phospha,te of Lime ... 
5 
13 
0 
Calcium 
... 2 
0 
0 
Carbonate of Lime •... 
1 
0 
0 
Sulphur 
... 0 
2 
219 
Fluoride of Calcium . . . 
0 
3 
0 
Fluorme 
... 0 
2 
0 
Chloride of Sodium . . . 
0 
3 
376 
Chlorine 
... 0 
2 
47 
Chloride of Potassium 
0 
0 
10 
Sodium 
... 0 
2 
116 
Sulphate of Soda 
0 
1 
170 
Iron 
... 0 
0 
100 
Carbonate of Soda ... 
0 
1 
72 
Potassium 
... 0 
0 
290 
Phosphate of Soda . . . 
0 
0 
400 
Magnesium 
... 0 
0 
12 
Sulphate of Potash ... 
0 
0 
400 
Silicon ... 
... 0 
0 
2 
Peroxide of Iron 
0 
0 
150 
Phosphate of Potash 
0 
0 
100 
Phosphate of Magnesia 
0 
0 
75 
Silica ... 
0 
0 
3 
150 
0 
0 
154 
0 
0 
Now I do not claim for these quantities anything more than 
a rude approximation to the truth; but as no one has yet 
analysed a whole human body_, we may take these calculations 
as representing the composition of a human body. 
Now these substances are not fixed in the human body. 
They are all of them constantly undergoing chemical change_, 
and the result of this chemical activity is what we call life. 
One of the necessary conditions of the life of the body is that 
it be placed in an atmosphere containing oxygen gas. Our 
atmosphere contains 79 parts of nitrogen and 21 parts of 
oxygen in every 100. This oxygen is being constantly taken 
into the human body. If we prevent the oxygen getting into 
the lungs by hanging, drowning, or any other process, the 
person is suffocated. It is the oxygen which consumes the 
body. Just as a burning candle is consumed in the air, so is 
the human body. The oxygen attacks the carbon in the 
system and forms carbonic acid ; it unites with the hydrogen 
and forms water. It has been calculated that twenty-four 
ounces of oxygen are every day taken into a human body 
Aveighing 154 pounds. This oxygen does not remain in the 
human body, but comes away from it again in the form of 
carbonic acid gas, Avhich is thrown from the lungs. Twenty- 
four ounces of oxygen Avill unite with eleven ounces of carbon 
