Holdred versus Nicholsoji. 3/9 



endeavour to get it for me. He accordingly took a friend with 

 him, and succeeded. But Mr. Gibson informed me tliat Mr. 

 Nicholson gave it with seeming reluctance. 



At page 49 of his Essay on Involution and Evolution, Mr. Ni- 

 cholson informs us, that his examples were wrought in the year 

 1818, and January 1819, so that he was preparing his examples 

 while I was rewriting my manuscript. This does not well agree 

 with what he says in his Postscript, page 82, that he had no in- 

 tention to publish a separate work in competition with mine. 



My work was complete before he saw it. I had nothing to ex- 

 tract from him; Mr. Nicholson extracted all from me, even his 

 demonstration is derived from mine, by reversing the equation. 

 He has no where accused me of making use of his demonstra- 

 tion, though he has not scrupled to publish my discovery. 



No. 2, Denzell- street, Clare-market. TheoPHILUS HolDRED. 



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