Cow. Ox. Sheep. Horse. Average. Solid excreta 38.0 44.0 42.6 46.7 42.8 Urine 5.8 6.3 6.8 5.7 6.2 ---- ---- ---- ---- ---- Total 43.8 50.3 49.4 52.4 49.0 NOTE V. (p. 234). PIG EXCREMENTS. The excrements voided by pigs are poor in manurial constituents, because the food on which they are fed is generally of a very poor nature. In their case the urine is always very much richer in manurial ingredients than the solid excreta. The relative composition of the solid excreta and the urine will be best illustrated by quoting some experiments carried out by Wolff on this subject. The experiments were carried out with two pigs nine and a half months old, and each 121.9 kilogrammes (a kilogramme is equal to about 2-1/4 lb.) in weight. The first consumed daily 1000 grammes of barley, 5000 grammes of potatoes, and 2572 grammes of sour-milk. The second one consumed the same quantities of potatoes and sour-milk as the first, and 1000 grammes of peas. The following table gives the results of excreta and urine daily voided, in grammes:-- Dry Nitrogen. Ash. Potash. Lime. Magnesia. Phosphoric substance acid. Solid { I. 217.7 8.7 28.6 7.3 4.4 3.0 10.3 excreta { II. 161.1 9.1 31.1 5.9 4.9 2.8 11.1 Urine { I. 112.8 19.3 56.2 33.0 0.4 0.9 6.7 { II. 137.7 30.6 62.2 37.1 0.2 1.1 7.1 NOTE VI.(p. 236). MANURIAL CONSTITUENTS IN 1000 PARTS OF ORDINARY FOODS. Based on Lawes and Gilbert's Analyses. (Warington's 'Chemistry of the Farm,' p. 139.)