432 WHALE-I'^ISHERY. 



6. " A method of extracting all the gross or inuci- 

 laginous matter from feiiks or Greenland blubber, 

 produced from whales, when boiled into oil ; 

 which method not only renders the oil so boiled, 

 more free from its usual rancid smell and taste, 

 but in a great degree adds to its burning and in- 

 flammable qualities," was invented by Mr Wil- 

 liam Allamus Day, of London, for which a pa- 

 tent was granted, bearing date December 20. 

 1814* 



7. Mr Edward Koche invented a simple method of 

 rendering rape-oil equal to spermaceti oil, for the 

 purposes of illumination ; which invention, proba- 

 bly, might have a similar effect upon common 

 Avhale or seal oil f . 



8. A process for refining whale oil, by agitation in 

 a mixture of tannin and water is employed by 

 Mr Speer of Bowling Street, Westminster, and 

 with such effect, that the most rancid oil, after 

 being submitted to the process, becomes so pure 

 that it may be burnt in houses :}:. 



Whale-oil, in its unrefined state, frequently 

 obtains an unmerited bad character for burning, 



• Repert. of Arts, (2d series,) vol. xxvi. p. 90- 

 t Idem, vol. xxx. p. 95. 



{ The only notice I have seen of this invention, occurs in 

 Parkes' " Chemical Essays," vol. i. p. 57» 



2 



