IT.OCESSES FOR KEF INIXG OIL. 431 



1. An account of processes for edulcorating train oil, 

 by Mr Dossie, was read before the Society for the 

 Encouragement of Arts, Sciences, and Commerce, 

 July 15. 1761 * 



2. Two processes for purifying rape-oil, applicable 

 also to train-oil, have been published in the 

 " Cours complct d' Agriculture," (torn, xii), by 

 M. Curaudeau f. 



3. A patent was granted to Mr Joshua Collier of 

 Southwark, broker, dated 13th December 1798, 

 " for a chemical process for freeing fish oils from 

 their impurities, in point of smell, taste, and co- 

 lour ; and for improved strainers for oils and other 

 liquids ; with other instruments for ascertaining 

 their qualities, and assisting their burning I" 



4. A patent, bearing date December 13. 1806, was 

 granted to William Speer, Esq. of Westminster, 

 (late of Dublin), for a new method " of purifying, 

 refining, and otherwise improving fish oils, and 

 other oils, and converting and applying to use the 

 unrefined parts thereof §." 



5. A patent for " a method of sweetening, purifying, 

 and refining Greenland whale and seal oil," was 

 granted to Mr Henry AVilliam Vanderkleft of 

 London, dated 26th July 1814 1|. 



" See Gent. Mag. for I76I, p. 49.5. 



f See Nicholson's Journal, vol. xiii. p. 150. 



t " Repertory of Arts," vol. x. p. SS9' 



§ Idem, (2d series,) vol. xii. p. IT-I-- 



W Idem, (2d scries,) \o\. xxv. p. 270- 



