IOWA ACADEMY OF SCIENCE 
147 
FIRST PORTION. 
SiO. 
ALO3 
Fe.Oa 
CaO 
MgO 
Weight of berries taken 
Weight of the ash 
SECOND PORTION. 
, 2.11 per cent of the ash 
3.88 per cent of the ash 
3.88 per cent of the ash 
7.60 per cent of the ash 
1.87 per cent of the ash 
2.015 grams 
09 grams 
KoO 
Na^O 
Weight of berries 
Weight of ash... 
12.87 per cent of ash 
16.79 per cent of ash 
2.0403 
0.0933 
THIRD PORTION. 
SO 3 27.13 per cent of ash 
Weight of berries 2.0533 
Weight of ash 0.0921 
FOURTH PORTION. 
The phosphate was determined by dissolving the ash in nitric acid, filtering 
and treating the filtrate v/ith a solution of ammonium molybdate. 
PoOg 12.89 per cent of the ash 
Weight of berries 2.0523 grams 
Weight of ash 0.0734 grams 
The total is 89.09 per cent of the ash; the remainder is organic matter that 
escaped combustion, and carbon dioxide. 
A portion of the pulp of the berries after the sugar and oil extractions was 
thoroughly dried, and 2.6083 grams ashed. The ash weighed 0.0483 grams, 
about half the weight of the ash of the original fruit, and a much larger bulk 
of fruit was required to weigh two grams than of the original fruits. The pulp 
now had only two characteristic odors, that of coffee, and of damp burning 
leaves. The odor of taffy seemed to have disappeared. 
THE OILS. 
The dried berries from the sugar extraction weighing 112 grams, were finely 
ground in a small coffee mill, and used for the oil extraction. The powder was 
placed in a 500 c. c. fiask which was tightly fitted with an inverted condenser, 
and treated with ether. Two weeks were required to extract all the oil. The 
ether was removed from the oil by distillation. The oil at first was of a beauti- 
ful green color, due no doubt to chlorophyll. The attempt was made to remove 
the chlorophyll by filtering through bone black, with ether, in the cold, but 
no effect wl/atever could be detected. The oil was then heated for twelve 
hours with ether and bone black, using an inverted condenser, and then filtered 
The oil now came out a beautiful amber color, the specific gravity of which 
was 0.9353. It was not possible to solidify it in a freezing mixture. The boiling 
point is about 82°. It has a characteristic odor which somewhat resembles 
