degree within our individual direction. o of manuring I consilor is at the roof of a gr ng may be called well devised or rati› a a upon the results of a cofil examinati, lus. ou of the plant under cultivation, and on a due natural qualifications for availing, self of out fod both from the atmosphere and le soil. Plops developed and extensive root system may prop" Les with a combs tene will fail; and the same statement * with equal free to the chracter of their leaf system." 1 decernie with certainty the composition of a plant, evm, refcrence to is soil constituents, requires repeated exammation . i''. of its growth, and when raise - upo . The : lations of the various mineral conto its access development met be ok on what elements of plant food ought to ne nap grailb、 form, to ren lei success i drfer et inds of × 3. stiments of 1 ptnt 1 Hull ask, Can we ela in any extensive knowled pbuts, in rat to many of our promincat speci to to my of tho. › plants which, in the more him, w' are known as eader crops. '? 65a orm „ka in these directions is in an exee, tiond 1 Whatever know about the creste es and of pea Lerden crops by any systemate lives is of a te da dinost instances thus far of slowness of the expustive action of fruit trees on the sol and garden on the part of agrenhe the quantity of manuri. n. ter has. y provided for special wants; and in this v: Cix De 2 1 gesetzlichen Gr. Ligen de i danze. I £7, is secured an intelligent explanation of the results. There is no scarcity of valuable testimony to the fact of an exceptionally good success in raising fruits and garden crops by the aid of compound manurial matters such as barnyard manure, vegetable compost of various descriptions, wood ashes, and others of a similar more or less ill defined composition; yet it is equally well understood that but little satisfactory explanation can be given in many instances regarding the particular relation which exists between the constituents or conditions of the manurial substances applied and the quality of the crops raised by their aid. The world-wide reputation of barnyard manure and wood ashes dates back not merely one or two centuries; their good effects have been known for thousands of years. Are we prepared to acknowledge that nothing more has been learned during the present century in regard to the feeding of plants than to use a little more or less of either substance, as circumstances may broadly indicate, to secure success? Most certainly not; for we have very good reason to believe that their ancient and general reputation rests on their complex character, and on their beneficial influence over various physical and chemical qualities of the soil. They contain in the majority of cases more or less of all the essential soil constituents which our cultivated farm and garden plants need. They can supply on that account, to some extent at least, not only known but also unknown deficiencies of plant food; and may thus secure, other circumstances being favorable, for a longer or shorter period of time a reasonable return when applied in liberal quantity. Experience has shown that refuse manurial matter like barnyard manure is most efficient when used for the reproduction of those crops which have contributed materially to its manufacture; and the same proposition may be maintained with reference to the manurial value of vegetable compost or ashes. The exceptional occurrence of these conditions materially limits, in the light of our present information, their claim of being the best of manures for the farm or garden, and needing no farther supplementing to meet any special deficiencies of plant food. The whole aspect of the question how to manure efficiently has gradually but decidedly changed within the last fifty years. We prefer today to speak of feeding plants. To feed plants intelligently implies possession in a fair degree of two kinds of |