188 EXPERIMENTS WITH SPECIFIC MANURES. 



to economize and improve tliem. A reference to Table H 

 will clearly illustrate tlie fact. I leave to persons more 

 versed in chemical lore than myself to illustrate this point ; 

 Lut this I observe, that the larg'er the amount of the 

 ammoniacal substance introduced into the mixture, the 

 greater is the saving- in bones, and in proportion is the crop 

 increased. 



Of the effects of inixed manvrcs there can be no doubt. 

 In every experiment undertaken to illustrate the properties 

 of the specific manures, the results from mixtures bear a 

 prominent part. In those I have imdertaken, this remark 

 also holds g'oodj and there can be no question, but that in 

 this way the larg'e proportion of our foreig'n manures should 

 be used. No doubt, some trouble may be necessary to dis- 

 cover the best mixtures, but this done, the results will more 

 than repay the cost. In the absence of mixtures, many of 

 our best manures, at least our best used in this way, are lost 

 sight of, and thereby we deny ourselves the benefit to be de- 

 rived from their use. Nor, because a mamu'e fails as an 

 individual a])plication, is it a reason for arg'uing- its failure in 

 mixture. This fact is distinctly proved in the succeeding- 

 Tables. 



Nor is this all, our best individual applications can be 

 improved by combination, either applied to grain or root 

 crops. Have we an individual substance excelling- in the 

 produce of straw, by a judicious mixture of this substance 

 with one or more substances excelling- in the produce of g-rain 

 and in the weight of it, the properties of all may be im- 

 proved, and the farmer more amply remunerated than by 

 adhering- to any individual substance. A word of practical 

 improvement. Not mine alone, but many other experiments 

 have clearly elucidated most important facts ; these shoidd 

 be promptly acted on. Much g-ood is lost by inactivity in 

 the application of truths derived from careful experiment. 

 This should not be ; for thoug-h some labour, and possibly 

 experience, may be necessary to demonstrate their practical 

 usefrilness, the public and private interests to be subserved 

 should, at all times, be a sufficient stimulus to the prosecution 

 of inquiry. Let farmers collate and reduce to practice the 

 facts to be g-leaned from experiments already recorded, and 

 they will reap benefit in their own profit, and promote the 

 national good. 



