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fill variety of moss, and in a longer time a second vari- 

 ety will appear. Very many instances of like character 

 might be mentioned, all going to show that certain con- 

 ditions will produce certain vegetable growths. 



I have endeavored to show that certain conditions of 

 the atmosphere, at a certain stage of the growth of the 

 onion, and the potato, will produce the parasites that 

 cause the blight and destruction of these crops. I be- 

 lieve that at such times, when the known conditions are 

 favorable for the production of these parasitic plants, 

 some application may be made that would ward off their 

 attacks, and save our crops. Here is a wide field for 

 investigation and experiment worthy the attention of 

 the scientific observer, and practical farmer. Let them 

 work together for effectual remedies of these great evils. 



Drought and excessive wet, also, at times operate very 

 much against the farmer's success. The one may be 

 partially remedied by fi'equent cultivation and hoeing, 

 and the other by a judicious system of under-draining. 



How is farming to be made most profitable ? 



First, let every farmer consider the locality of his fjirm 

 with reference to the market for his produce ; then the 

 character of the soil, and size of the farm ; finally his 

 own taste should be carefully studied before deciding 

 upon the kind of farming he will pursue. 



Man is capable of governing nations, of commanding 

 armies and navies, of the conception and construction of 

 the most minute and delicate machinery, as well as the 

 most ponderous steamship that ploughs the ocean. He 

 has united the continents, so that the heart-throbbings of 

 the one are felt throughout th^e length and breadth of the 

 other. He commands the very elements, and they obey, 

 . and do his work, but no one man has done all these 



