OF ARTS AND SCIENCES. 



Estimated as above, we obtain 



^Nitrogen 0.14 



1 Carbon 0.49 



Nitrogenous constituents, { Hydrogen 0.06 



I Oxygen 0.19 



[Sulphur 0.01 



/• Carbon 42.86 



Non-nitrogenous constituents, < Hydrogen 5.95 



117 



0.89 



i Oxygen 47.63 



96.44 



Water not expelled at 100° C. { hydrogen 0.39 

 * ( Oxygen 3.12 



3.51 

 Ash 0.21 



101.05 



Reduced to percentage, we obtain 



" Sago is a variety of starch extracted from the pith of palms, 

 many species of which are capable of yielding it. Amongst these 

 are Sagus Riwiphii, Cicas inermis and revoluta, Coryota urens, Bo- 

 rassus Gomato, and several species of Zamia, Corypha, and Mauritia. 

 The starch is obtained from the pith, which constitutes nearly the 

 entire body of the stem of these palms. A single stem is said to 

 yield three cwt. of sago. The stem is cleft open, and the starch col- 

 lected, washed upon sieves, and purified by elutriation with water in 

 vats ; the granulation is performed by forcing the starch through sieves 

 in such a manner that the lumps shall fall upon a hot plate of copper. 

 Each lump is converted into paste, the granules of starch swell up 

 and dry into the irregular, roundish masses, about the size of small 

 shot, which constitute the sago in its market condition. 



" Sago is sometimes fraudulently imitated with potato-starch, but this 



