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           Dear HESers, 
                        I am an economics postgraduate student at Bristol 
  University, currently in the first year of my PhD. My research is in the 
  history of economics, and I am investigating Cournot's influence on some 
  early British neoclassical/mathematical economists; Edgeworth and Pigou 
  in particular. I was wondering if any of the list members might be 
  able to help trace an "unpublished" note by C.P. Sanger that Pigou refers 
  to in one of his articles. 
        The article I refer to is called "The Known and the Unknown in Mr. 
  Chamberlain's Policy" and was published in the "Fortnightly Review" 
  (January, 1904). In a footnote (p. 44) of this article Pigou introduces a 
  formula for working out the effect of a tariff on the equilibrium price of 
  a commodity. The same footnote, with a few minor modifications, can also 
  be found on pages 94-95 of Pigou's book "Protective and Preferential Import 
  Duties". After defining his variables and giving the formulas (there are 
  two formulas, although they are simply different ways of writing the same 
  result and can be shown to be equivalent - Pigou, however, does not give 
  any proofs) Pigou writes: 
 
        "I have had the great advantage of reading an unpublished note 
  upon this part of the subject by Mr. C.P. Sanger, of University College, 
  London, though he is not, of course, responsible for any of the opinions 
  here expressed" 
 
  Does anyone know if this note by Sanger was ever published or if a copy 
  of it exists either among Sanger's or Pigou's collected writings? I 
  would be very grateful for any helpful suggestions. 
 
                Yours sincerely 
 
                Farid El-Husseini 
 
 
 
 
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