No. 140.] Id7 



J\'b. 13. — Carbonic Acid. — Soils contain this gas in preportion 

 to their other constituents, but after adopting the plans recom- 

 mended above, your soil will supply itself -with this material 

 from the atmosphere. 



You will now readily perceive how you can supply yourself 

 with the deficiencies of your soil, and that too without so large 

 a disbursement of capital as formerly used for the purchase of 

 manure. You will readily see, by reference to an analysis of 

 horse manure, such as you have been in the habit of purchasing, 

 that it does not contain the constituents of plants in such propor- 

 tions as to supply the present deficiencies of your soil, and if you 

 will follow the plan now proposed, using only one-third your 

 usual quantity of stable manure, and that composted with many 

 times its bulk of prepared muck, with the ingredients above 

 recommended added to the compost, you will find a marked im- 

 provement the first year, largely increased crops tlie second 

 year, and a permanent capacity in the soil for giving a full effect 

 to all manures afterwards added. 



As your soil now is, the volatile portions of manures escape 

 without being all used by the plants. The proposed plan will 

 remedy this evil, and your manures will last as well as in a 

 strictly clay soil. 



Peruvian guano, if now applied, unless previously composted 

 with charcoal dust, gypsum, or some other material capable of 

 retaining ammonia, will last but one crop, and night soil, the best 

 of manures J but two crops ; 6ut, add the prepared muck in suffi- 

 cient quantities, and either of these manures will do good ser- 

 vice. As you are desirous of raising heavy crops of esculents, 

 much good manure may be cheaply made from the wastes of fac- 

 tories, easily and cheaply attainable ; thus, the waste from glue 

 factories, for your use, when composted with prepared muck, 

 are cheaper than stable manures, costing nothing but their cart- 

 age Irom the city. 



Peruvian guano at $50 per ton, if composted under cover with 

 prepared muck, is cheaper than stable manure alone, at no cost 

 but the cartage. You will readily understand this fact thus 



