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11.

Messrs. Ignacio Palan & Co., of Bahia, Ecuador, for examination. It was especially desired that a quantitative determination of the amount of fixed oil which they contained to be made. This was done by the employment of several processes requiring several weeks of steady work. The most exact determination was made with the chloroform process which gave 36.4% of oil as contained in the dried nuts.
   Letters giving these details were of course forwarded accordingly ^[[insertion]] with sample of the oil. [[/insertion]]
   A great many more instances of this kind might here be cited but these few are perhaps sufficient to show the kind of correspondence which is constantly being carried on with this department and also the amount of work which is generally connected with it. The work which is, as may be seen after a perusal of these letters, mostly chemical, points strongly to the necessity