56 BULLETIN 824, U. S. DEPARTMENT OF AGRICULTURE 
TasLEe 42.—Analysis of Japanese Pyrethrum stems! before and after grinding 
Unground stems Powdered stems 
cyst Ash F Ash 
Rogen, Ash insol. Nalrogen, Ash insol. 
> in HCl in HCl 
Per cent | Per cent : Per cent || Per cent | Per cent | Per cent 
0. 982 5. 03 1.10 0. 706 4.29 0. 85 
814 5. 58 1. 50 765 4.54 1.02 
854 5. 07 79 1.015 6. 26 1. 94 
948 5. 63 1.45 | 877 5. 50 1.57 
. 884 4.81 90 . 891 5.75 1. 66 
. 842 5. 03 1.15 
. 954 5. 86 1. 54 
891 5.71 1.69 
912 5.71 1.72 
996 5. 88 1.80 
. 758 4.75 1.15 
961 6. 03 1.84 
. 940 5.81 1.81 
. 891 5. 67 1. 67 
. 863 5. 07 1.28 
. 870 5. 57 1. 55 
2996 25, 22 21.15 2.879 25. 46 21.52 
| 
1 These stems originally contained much “‘dirt’’ which was removed by sieving, 16 per cent being thus 
thrown Bay, The figures reported are cn the stems after removal of all dirt. The discarded sievings 
analyzed: 
Ash 
insoluble 
Nitrogen,| 4 oh 
“ in HCl 
Per cent | Per cent | Per cent 
1. 93 21. 62 13. 99 
1. 93 23. 23 15. 67 
1. 82 23. 64 16. 19 
2 Average. 
The average results for nitrogen, total ash, and ash insoluble in 
hydrochloric acid in the flowers before and after grinding agree 
closely, showing that no appreciable change in composition is brought 
about by the process of grinding. 
In the case of stems the figures for total ash and acid-imsoluble 
ash are a little higher in the ground product. This is no doubt due 
in part to the sampling, as it is difficult, in the case of the unground 
stems, to cbtain a uniform sample, owing to the nature of the material 
and to the way in which it is packed. 
Practically all the insect flowers imported into this country are 
the Chrysanthemum cinerarizxfolvum, but after the beginning of the 
World War a few shipments of flowers of C. rosewm were received 
from Russia, through Marseilles or Italian ports. The results of 
analysis of these samples are given in Table 43. A comparison of 
these results with the corresponding figures for the various prada 
of flowers and stems of C. cinerarizfolium shows that the ash and 
nitrogen contents of C. rosewm are higher and the ether extract 
and pentosans are lower than those of either the flowers or stems of 
the C. cinerarizfolium. The values for crude fiber and phosphorus 
