Now, if the vinegar plant gives rise to the oxidation of alcohol, on account of its merely physical constitution, it is at any rate possible that the physical constitution of the yeast plant may exert a decomposing influence on sugar.

They are usually set down as due to varying degrees of oxidation in the pigmentary matter.

Certain articles of food also contain small amounts of sulphur and phosphorus, which undergo oxidation into sulphates and phosphates.

A small quantity only of silicon separates in the uncombined form, the greater quantity separating in the form of silica, SiO{2}, the amorphous silicon so obtained apparently being more prone to oxidation than the boron so obtained.

Just as the energy for the working of the engine is obtained from steam by the combustion of fuel, so the energy possessed by our bodies results from the combustion or oxidation within us of the food we eat.