484 



Agricultural Chemistry, — Pig Feeding, 



the amounts of food consumed, much of consistency in the 

 results throughout this Series ; and also, that their indications 

 agree very closely with those of the previous Series. If too, in 

 looking at this Table of the increase of each pig, we exclude 

 those which died, we shall see, that upon the whole, the actual 

 increase per pig upon any particular food is seldom inferior in 

 this Series, and sometimes superior, to that upon the food most 

 nearly corresponding with it in the previous Series. 



Having, then, thus shortly called attention to the irregularities 

 in the results of this Second Series, we shall not go into the same 

 detail on these points as we thought it well to do in reference at 

 least to one set of the experiments ; for, as we have already 

 observed, notwithstanding the numerous incidental circumstances 

 which were then pointed out affecting the actual increase of the 

 pigs, it will still be found, that there was a great consistency 

 throughout, in the relationship of increase to food consumed ; 

 and, as we have said, it will be seen too, that there was a 

 similar consistency in the results of this Second Series, botk 

 when compared among themselves and with those of Series I. 



But, before going further into these points, we will here briefly 

 notice the arrangement and actual results of the Third and last 

 Series of experiments. 



This Third Series consists of 5 pens, with 4 pigs in each,. 

 These five experiments were, however, not all conducted at the 

 same time ; those with the first three pens being simultaneous 

 with the First Series, and those with Pens 4 and 5 with Series 11. 

 Indeed, the pigs of this series were those Avhich had been thrown 

 out in making the selection from the whole stocks for the other 

 two series ; so that those in some of the pens were not, in point 

 of weight or similarity, well calculated for comparison with the 

 rest. Thus, although the pigs in Pens 1 and 2, of Series 1 11.^ 

 compared very well with each other in these respects, and were 

 all exceedingly fine pigs, and very kindly feeders, those in Pen 3 

 were all odd pigs, and of very different weights and quality from 

 the former. Pens 4 and 5, again, compared pretty well with 

 each other as to the pigs allotted to them, but these 8 pigs were 

 only about 7 months old, and they were more finely framed than 

 those in the other pens, and did not therefore assort well with 

 them. The five pens are, however, thus classed together on 

 account of the general similarity throughout in the description 

 of the food employed : and, notwithstanding the circumstances 

 which have been mentioned, we shall find further on, that — ■ 

 with some peculiarity of result in this series, as compared with 

 the former, arising from the character of the food employed — 

 there is still, on comparing these five pens one with another^ 

 more of consistency than we might have anticipated, when we 



