With regard to the difference in the composition of the solid excreta voided by different fattening animals fed on the same amount of food, see Warington's 'Chemistry of the Farm,' p. 125, where it is shown that for equal amount of live-weight, the sheep produces on the same weight of dry food very much more manure than the pig, while the ox produces even more than the sheep. Of course this does not refer to the total amount of manure produced by the different animals, but only to the amount of manure produced from the consumption of equal quantities of food. This would seem to be owing to the greater capacity the pig has for assimilating its food. NOTE II. (p. 227). SOLID EXCRETA VOIDED BY SHEEP, OXEN, AND COWS. To contrast with the analyses given by Stoeckhardt, it may be well to cite those based on Lawes and Gilbert's experiments, and quoted by Warington ('Chemistry of the Farm,' p. 138):-- I.--SHEEP (fed on _meadow-hay_). SOLID EXCREMENT. Fresh. Dry. Water 66.2 - Organic matter 30.3 89.6 Ash 3.5 10.4 ---- ---- Nitrogen .7 2.0 II.--OXEN (fed on _clover-hay_ and _oat-straw_, with 8 lb. _beans_ per day). Fresh. Dry. Water 86.3 - Organic matter 12.3 89.7 Ash 1.4 10.3 ---- ---- Nitrogen .3 1.9 III.--COWS (fed on _mangels_ and _lucerne hay_). Mangels. Lucerne hay. Water 83.00 79.70 Nitrogen .33 .34 Phosphoric acid .24 .16 Potash .14 .23 NOTE III. (p. 232). URINE VOIDED BY SHEEP, OXEN, AND COWS. The following are the results for urine, the animals being fed as in Note II.:-- Sheep. Oxen. Fresh. Dry. Fresh. Dry. Water 85.7 - 94.1 - Organic matter 8.7 61.0 3.7 63.0 Ash 5.6 39.0 2.2 37.0 ---- ---- ---- ---- Nitrogen 1.4 9.6 1.2 20.6 Cows. Mangels. Lucerne hay. Water 95.94 88.25 Nitrogen .12 1.54 Phosphoric acid .01 .006 Potash .59 1.69 NOTE IV. (p. 233). PERCENTAGE OF FOOD VOIDED IN THE SOLID AND LIQUID EXCREMENTS. According to Wolff, the following table shows the percentage of the dry substance of the food which is voided in the solid and liquid excrements of the cow, ox, sheep, and horse:--