
          upon it in preparing it for the press, to make the 
 necessary qualification, particularly as it does not 
 affect the argument. By the oils of course is meant
 the fatty acids [added: &c.] which are Carbon & hydrogen only, 
 the resins, as my idea [runs?] being a subsequent oxidation 
 of oils. But you will find the statement properly
 qualified in my Text Book, 2 years ago, a 
 fair answer to the charge of being ignorant of so 
 simple matter. 


 In regard to the whole Current of Draper's 
 reply, 1r. [first], nothing need be said, as he does not touch 
 any of the points in question.
 2nd, Suppose all the articles have been published 
 in English Journals; and abstracts in the European,
 what then? They have not endorsed them, and if 
 they have, that does not make them true and sound.
 (Passim, the Annales de Chimie is not the organ of
 Academy of France, &c.) Becquerel noticed [added: one of] his 
 papers, it is true at the Institute. But Draper 
 forgets to tell us that he blew it up! If Brewster 
 gave him credit for his Daguerrotype portraits, you 
 will know how much [added: of] the original credit belongs to 
 him. 
 3rd. Suppose the physics are all good.
 I expressly disclaimed any thing to do with them (p.
 39.) The papers that he would have us believe are 
 so important, and have [added: been] received with such eclât [eclat],
 have nothing directly to do with the main staple of 
        