92 HOW CROPS GROW. 
CENTESIMAL COMPOSITION OF THE ELEMENTARY FATS, 
Stearin.  Palmitin.  Olein. 
Carbon, 76.6 75.9 TA 
Hydrogen, 12.4 12.2 11.8 
Oxygen, 10.0 11.9 10.8 
100.0 100.0 100.0 
Phosphorized Fats.—The animal brain and spinal cord, 
and the yolk of the egg, contain a considerable amount of 
fat which has long been characterized by a small con- 
tent of phosphorus. Von Bibra found the quantity of 
phosphorus in this (impure) fat to range from 1.21 to 2.53 
per cent. Knop (Vs. Sé. 1, p. 26) was the first to show that 
analogous phosphorized fats exist in plants. From the 
sugar pea he extracted 2.5 per cent of a thick brown oil, 
which was free from sulphur and nitrogen, but contained 
1.25 per cent of phosphorus. 
The composition of this oil was as follows: 
GOP BOR sie cis eccacaseeaid wake idpacaarae geen sna eraierateresecase 66.85 
VOPOSSD co iaaa sucrose eGieinie eisrenaine mramiioiein sine’e 9.52 
Oxygen pe dcbik dea Ai wath Ge ELAR ON ERE) 22.38 
hos Ph OF US i essassra'e: ates siete wciesore’ee aiereine ars 1.25 
100.00 
Tépler (Henneberg’s Jahresbericht 1859—1860, p. 164) 
subsequently examined the oils of a large number of seeds 
for phosphorus with the subjoined results: 
Source of Per cent of Source of Fer cent of 
Sat. phosphorus, Sat. phosphorus, 
Lupine........0.eeeee 0.29 
Pea 
Horse beat ,occaveus su 0. 2 
VetCh scccs cx eeiaisane none 0.50 
Winter lentil......... 0.39 
Horse-chestnut....... 0.80 
Chocolate bean...... none 
MMC Basis oarsie sciences ee 
