1886.] 



PUBLIC DOCUMENT — No. 33. 



85 



Blackberries. 



[From Experimental Plats on College Grounds.] 

 Crude Ash, 35 to .40 per cent. 



Relative Percentage of Essential Ash Constituents. 



Potassium oxide, . 51.424 per cent. 



Calcium oxide, 17.222 



Magnesium oxide, 6.300 " 



Ferric oxide, 1.421 " 



Phosplioric acid, 24.129 " 



99.999 



Blueberries, 



{Matured.) 



[Collected July 15, 1885, near Amherst, Mass.] 



Moisture at 100° C, 



Dry Matter, .... 



Nitrogen (in Dry Matter), 



(Equal to Albuminoids, 0.875 per cent.) 



Juice, 



Acid in Juice (Tartaric), 



. ^ . ( Glucose, 

 Sugar m Juice < „ 



" V Cane sugar, 



Crude Ash (in Dry Matter), . 



One hundred parts of crude ash in dr 

 silicious and earthy material. 



82.69 per cent. 

 17.31 

 .14 



Mucilagenous. 

 1.27 per cent- 

 9.34 



.46 



.16 



y matter contained 2.04 parts of 



Relative Percentage of Essential Ash Constituents 



Potassium oxide. 

 Calcium oxide, 

 Magnesium oxide. 

 Ferric oxide, . 

 Phosphoric acid. 



99.999 



OBSERVATIONS ON APPLES. 

 Juice and Pomace. 



1. Material sent on from Cider 31 ills. 



[From Mixture of Apples.] 

 October 6, 1885. 



Juice. 



Specific Gravity, 1.045 



Temperature, ......... 20° C. 



Total Sugar, 7.58 per cent. 



Acid (Malic), 1.00 " 



