212 MEMOIR OF AUGUSTUS DE MORGAN. 



inform the English, public how the matter stands. All this is 

 written without communication with him. 



Yon will, of course, take care to be well informed as to the 

 nature of the above proceeding. That being the case, I think 

 you will probably find that the matter stands, to any reasonable 

 mind, just where it did. If you ' state the position in which 

 the case stands,' I think it most likely that you will do nothing 

 which any friend of M. Libri can regret. 



On casting my eye over your note, I marked the words, which 

 I missed at first, ' Thai proof has been given in a court" of law ; 

 on what amount of valid evidence I cannot say.' Now I say that 

 you will be able to ascertain that there has been neither proof 

 nor evidence only indictment allegation and judgment by 

 default of appearance. Of course, a tender of evidence is implied 

 in the indictment, and, for aught I know, in the recital. 



Yours truly, 



A. DE MORGAN. 



To the Rev. Dr. Whewell. 



July 12, 1850. 



MY DEAR SIR, I have got my paper on logic out of hand, 

 and have begged the Pitt Press to retain one of my copies for 

 you, and to send it to you ; which if they neglect, I shall be much 

 obliged by your reclaiming, as the French say. 



I have to-day got Sir W. Hamilton's system for the first time 

 in a full and acknowledged form. His pupil, Spencer Baynes, 

 has published the essay on it which got the prize in 1846 ; the 

 very essay, the requisites for which, sent to me, made the founda- 

 tion of Sir W. H.'s charge of theft.. It has appendices and 

 a note by the arch-syllogist himself. I and Boole come in, 

 without being named, for a lecture against meddling with logic 

 by help of mathematics. Pray get this work and read it care- 

 fully. 



My next thoughts about the subject will be on the relation 

 between the laws of enunciation and the laws of thought, and 

 particularly with reference to certain invasions of each other's 

 province which I imagine to exist. 



I shall return to an objection of yours to my assertion that 

 prayer enunciates. (You may have forgotten it, but I have all 

 my logic correspondence together, and have been looking over 

 it.) You say that under such an extension a man who shuts up 

 his window enunciates that he is not at home. I dispute your 



