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1st. " That various diseases, universally supposed to be destructive to 

 plants are only symptoms that a particular error in cultivation has been 

 committed ; and that many other injurious effects have been produced by 

 the same error, which are attributed to other causes. 



2d. " That the error is universally committed, to a greater or less 

 extent, throughout the States, and that he has seen an excess of it where- 

 ever he has been, which is in the Atlantic States, from Georgia to Massa- 

 chusetts, inclusive. 



3d. " That the Peach and Nectarine are more easily injured by tha 

 error than most other Fruit trees, and the cause of their being more easily 

 injured by it ; and that this error causes them to be barren, or short-lived. 



4th. " That the application of two known laws in nature demonstrate 

 the reality of his discovery and its application to the whole vegetable king 

 dom ; and that by them, his discovery, (if publicly known,) must be per 

 petuated, and his practice more easily introduced : and that by these two 

 laws the occasional success of common remedies is explained. 



5th. " That the said error is the obstacle which has discouraged experi- 

 menters, and lamentably retarded improvements in the scienee and practice 

 of agriculture ; and that he has discovered facts and made himself acquainted 

 with knowledge sufficient to reduce them to practice." 



We are farther informed, '* that it is neither climate, nor soil, nor insects, 

 nor worms, that are the cause of many of the disastrous effects that have 

 been attributed to them, but that those effects are produced by error in cul- 

 tivation, which diseases the smallest plant or largest tree." 



Our modest and patriotic fellow-citizen admits, in the course of his 

 preamble, "that the practical part of his discovery is so extremely simple 

 and economical, that it costs no more to prevent the diseases than it does 

 to produce them ; and that it is so different from the established theories 

 and habits of the people, that unless a large amount be appro- 

 priated, many will be unwilling to try it, and therefore the public good 

 seems to require that a large amount should be appropriated." He more- 

 over asserts, that "there are two known laws in nature, by which the reality 

 of his discovery, and its application to the whole vegetable kingdom, are 

 demonstrable in less than thirty words." 



That this invaluable secret, whatever it may be, is not strictly speaking 

 a new discovery, is demonstrable by numerous living witnesses which have 

 inhabited the fields of the old world for over a thousand years ; and our 

 discoverer freely admits, and in very emphatic language, that there are 

 thousands of trees in our own opuntry on which, what he terms the com- 

 mon error " has never been committed ; and also, that several of the fifteen 

 gentlemen to whom he communicated his secret, " confidently for ever," have 

 some such trees on their own domains. 



Hear him " The Senator from Missouri, (Mr. Linn,) said, that the most 

 flourishing and healthy Peach tree in his possession had never had what I 

 call the common error in cultivation committed upon it." 



" The Senator from Pennsylvania, (Mr. McKean,) said, that he had long 

 supposed that what I call the common error, was an error, but that he had 

 no idea of such extensive evils arising from it." 



" The Senator from Maryland, (Mr, Spence,) said, that in his district it 

 was a universal custom to commit what I call the common error in cultiva- 

 tion, on the fruit trees, and that it was common to have no Plums perfect 



