NATl liAL MANUIJE. 27 



.vll. .My mil- is to sril iintliiiii,' liiil \\ .iiat, liail< y, Ix'aiis, pntalocs, 

 clttvrrsfed, :i|)|)lis, woul, iiiiitloii, Ixn", l»'>rk, ami biilttr. Kvcry- 

 tliiiiij else is (■oiisiiiiiiil <>n Uk- farm -corn, |>fu>, oats, mustard, 

 rape, niaiim-ls, clover, straw, stalks, etc. L<t us make a n>uj;li 

 estitnate of liow much is sold and li<t\v inucli retiiined on a iiun- 

 dre«l-acre farm, leaving; out the potatoes, bcaus, and live-stock. 

 We have sjiy : 

 Sold. 



15 acres wlu-at, (a 40 Imsluls per acre IH tons 



5 " t)arlcy, (ff 50 " *' fl " 



15 " i-l<»ver sH-ed, 4 " " U ton. 



Total sold 'S)l tons. 



Retained on the fann. 



15 acres corn, (n 80 bushels per acre 'A^l tons. 



Com stalks from ilo -JO " 



5 acres barley straw 8 " 



10 " oats und pcus, equal HO bushels of oats iLl " 



Straw fn)m do A) " 



15 .icres wheat-straw 25 " 



15 " clover-hay 'i-"> " 



Clover-sted straw 10 " 



15 acres p:isture and mcailow, equal 40 tons hay 4(i " 



5 " mustard, equal 1(» tons hay 10 " 



5 " rape, equal 10 tons hay 10 " 



5 " HianjieU, 25 tons per acre, equal to 3 Ions dry 15 " 



Leaves from do ;{ " 



Total retained on the farm 2521 tons. 



It would tike a srood many j-ears to exhaust any ordinary soil 

 by such a course of croppimr. Except, ]MThaps, the sandy knolls, 

 I think there i.i not an acre on my fariu that would be exhausted 

 in ten thousand years, and as some portions of the low alluvial 

 soil will iTfow crops witiiout manure, there will be an opportui.ity 

 to jjive the poor, sandy knolls more than their share of plant-food. 

 In this way, notwithstanding: the fact that we sell proiluce and 

 brin<T nothing back, I believe the whole farm will pradually 

 increase in productiveness. The plant-food annually rendered 

 available from the decomposition and disintecration of the inert 

 orijanic and mineral matter in the soil, will be more than ec(ual to 

 that exporteil from the farm. If the soil becomes deficient in any- 

 thing-, it is likely that it will be in phosphates, and a little super- 

 phosphate or bone-dust miirlit at any rate be profitably used en 

 ihe rape, mustard, and turnips. 



The point in good farmi;i.r is to develop fr(un the latent stores 



