INSECT POWDER. 



61 



Table 38. — Analysis of commercial insect powders unadulterated vnth I'yrethrum stems, 

 foreign plant material, or coloring matter — Continued. 



Sam- 

 ple 

 No. 



Made in- 



Nitro- 

 gen, N. 



Ash. 



Ash in- 

 soluble 

 in HCI. 



Sam- 

 ple 

 No. 



Made in- 



Nitro- 

 gen, N. 



Ash. 



Ash in- 

 soluble 

 inHCl. 



24315 

 24316 

 24317 

 24318 

 24319 



United States 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



Perct. 

 1.68 

 1.70 

 1.59 

 1.55 

 1.59 

 1.65 

 1.54 

 1.63 

 1.59 

 1.49 

 1.51 

 1.43 

 1.43 

 1.45 

 1.51 

 1.45 

 1.49 

 1.59 

 1.52 

 1.65 

 1.62 

 1.43 

 1.48 

 1.45 

 1.54 

 1.48 

 1.39 

 1.41 

 1.51 

 1.45 

 1.79 

 1.73 

 1.63 

 1.67 

 1.71 

 1.62 



Per ct. 



7.71 

 7.70 

 7.58 

 7.57 

 7.42 

 7.66 

 7.46 

 7.92 

 7.88 

 7.38 

 8.06 

 8.04 

 7.81 

 7.83 

 7.65 

 8.02 

 7.93 

 9.26 

 7.17 

 7.62 

 7.89 

 7.57 

 7.68 

 6.67 

 7.84 

 7.87 

 7.34 

 7.91 

 7.78 

 7.62 

 7.89 

 7.59 

 7.03 

 7.24 

 7.32 

 7.41 



Per ct. 



0.53 



.51 



.62 



.64 



.62 



.54 



.ti4 



1.11 



1.52 



.98 



1.07 



1.55 



1.46 



1.60 



1.53 



1.78 



1.87 



3.61' 



1.05 



1.37 



1.41 



1.77 



1.74 



.91 



1.29 



1.90 



1.73 



2.15 



1.53 



1.96 



.58 



.46 



• 40 



.35 



.33 



.99 



24351 



24352 



24353 



24354 



24355 



24356 



24426 



24437 



24643 



24644 



24645 



24646 



24647 



24648 



24649 



24650 



24651 



24652 



24653 



24708 



247362 



24779 



24798 



24812 



248202 



25062 



25069 



25070 



261882 



330352 



United States 



do 



do 



do 



do 



Perct. 

 1.62 

 1.63 

 1.65 

 1.56 

 1.70 

 1.65 

 1.51 

 1.73 

 1.76 

 1.76 

 1.79 

 1.77 

 1.77 

 1.73 

 1.77 

 1.77 

 1.80 

 1.80 

 1.52 

 1.34 

 1.59 

 1.20 

 1.56 

 1.59 

 1.66 

 1.68 

 1.26 

 1.68 

 1.32 

 1.56 



Perct. 

 7.46 

 7.41 

 8.01 

 7.53 

 7.71 

 7.84 

 7.40 

 6.87 

 7.44 

 7.57 

 7.81 

 7.43 

 7.64 

 7. .56 

 7.55 

 7.42 

 7.93 

 7.59 

 6.59 

 7.77 

 7.35 

 7.07 

 7.80 

 8.63 

 6.86 

 7.54 

 6.75 

 8.01 

 5.53 

 6.46 



Per cl. 



0.70 



.87 



1.04 



.91 



.43 



24320 

 24321 



do 



do 



.73 

 1.49 



24322 



do 



.69 



24323 

 24324 

 24325 



do 



do 



....do 



1.04 

 1.15 

 1.29 



24326 



do 



1.05 



24327 



.. do.. 



1.27 



24328 



....do 



1.14 



24329 



do 



1.13 



24330 



do 



1.12 



24331 



...do 



1.46 



24332 



do 



1.10 



24333 



do 



.81 



24334 



Europe 



• 72 



24335 

 24336 



United States 



Europe 



1.08 

 1.27 



24337 

 24338 



United States 



1.22 

 2.99' 



24339 

 24340 

 24341 

 24342 

 24343 

 24344 

 24345 

 24346 



do 



United States 



do 



do 



....do 



....do 



Minimum 



.66 

 1.18 

 .20 

 .29 

 .44 

 .68 



1.08 

 2.01 

 1.558 

 193 



5.47 

 10.09 

 7.52 

 196 



.09 



24347 

 24348 



Maximum 



4.32 

 .96 



24349 

 24350 



No. samples exam- 

 ined. 



195 



1 Contains sand. 2 (7. cinerarisefolium grown in California. 



Table 39. — Analysis of adulterated commercial insect powders. 



Made in— 



Nitro- 

 gen, N. 



Ash. 



Ash in- 

 soluble 



HCI. 



Color of ether extract. 



Adulterants. 



United States 



....do... 



....do... 



....do... 



....do... 



....do... 



....do... 



do... 



do... 



do... 



do... 



do... 



Italy 



Austria . 



United States 



..do... 



--do... 



--do... 



--do... 



-.do... 



..do... 

 -■luslria . . 



.do. 



Per ct. 



0.895 



1. 1.55 



.884 



.891 



1.080 



1 060 



1.122 



1.135 



1.120 



.910 



1.090 



1.120 



1.370 



.990 



1.180 

 1.1-10 

 .950 

 1.145 

 .947 

 .919 

 1.120 

 1.210 



.820 



Per ct. 

 10.26 



7.72 

 6.28 

 6.76 

 7.17 

 9.86 

 12.70 

 7.77 

 7.06 

 5.43 

 7.81 

 6.24 

 8.71 



7.31 



7.60 

 9.78 

 6.37 

 9.60 

 6.77 

 6.31 

 6.12 

 7.30 



23.43 



Per ct. 



3.32 



1.28 



.69 



1.83 



1.88 



3.56 



5.50 



1.90 



.57 



.07 



.16 



.57 



Strong green 



do 



do 



do 



do 



Dirty pale yellow . 



Green 



...do 



do 



do 



do. 



2.10 

 .69 

 2.26 

 1.54 

 .67 

 .55 

 .55 



Greenish 



Slightly greenish yel- 

 low. 

 Strong green 



Greenish yellow. 



do 



Strong green . . . - 



do 



do 



do 



Greenish yellow- 

 Green 



.do. 



Stems and sand. 

 Stems. 



Do. 

 Stems and sand. 



Do. 



Do. 



Do. 



Do. 

 Stems. 



Do. 



Do. 



Do. 

 Lead chromatc (2.82 per cent). 



Stems and 2.27 per cent lead 

 chromate. 



Stems and unidentified bark. 



Stems and sand. 



Stems. 



Stems and sand. 



Stems. 

 Do. 

 Do. 



Stems and 1.48 per cent lead 

 chromate. 



Stems, calcium carbonate, and 

 2.07 per cent barium chro- 

 mate. 



