([10]) The term dry is applied to the solid constituents of the food. Thus, a pig fed with 100 lbs. of potatoes would be said to have been supplied with 25 lbs. of dry potatoes, because water forms 75 per cent. of the weight of those tubers.
([11]) The amounts of "mineral matter" are too high, owing to the adventitious matters (dirt) retained by the wool.
([12]) This pig was completely analysed by Lawes and Gilbert.
([13]) The results of recent and accurately conducted investigations prove that men engaged in occupations requiring the highest exercise of the intellectual faculties, require more nutritious food, and even a greater quantity of nutriment, than the hardest worked laborers, such as paviours, and navvies. I have been assured by an extensive manufacturer, that on promoting his workmen to situations of greater responsibility but less physically laborious than those previously filled by them, he found that they required more food and that, too, of a better quality. This change in their appetite was not the result of increased wages, which in most cases remained the same—the decrease in the amount of labour exacted being considered in most cases a sufficient equivalent for the increased responsibility thrown upon them.
([14]) As ammonia, urea, uric acid, or hippuric acid; all of which are nearly or perfectly mineralised substances.