654 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



based on the same product or correspondence with the manufacturers, 

 and 791 samples were undergoing analysis and test. 



The inspectors and sample collectors of the board operating 

 throughout the United States collected 1,236 samples during the year. 

 A general classification of the articles represented in the collection is 



as follows : 



Interstate samples collected. 



j Number 

 Class of samples. I of 



samples. 



Arsenate of calcium ' 33; 



Arsenate of lead . 



Bordeaux mixture and combinations of Bordeaux mixture with insecticides. 



Chlorinated lime 



Dips for animals 



Disinfectants, germicides, bactericides 



Fly preparations for animals 



Fish-oil and whale-oil preparations 



Formaldehyde preparations 



Insect preparations, household use 



Miscellaneous insecticide and fungicide preparations 



Kerosene emulsions 



Lice and mite killers 



Lime-sulphur solution and sulphur preparations 



Nicotine preparations 



Paris green 



Pyrethrum and hellebore powders 



51 



1» 



6» 



174 



59 



10 



38 



202' 



169 



3 



S» 

 6& 

 34 

 31 

 92 



Miscellaneous 55 



1,236. 



IMPORT SAMPLES. 



During the year 181 official and unofficial import samples of in- 

 secticides and fungicides were collected through the various port 

 laboratories of the Bureau of Chemistry for examination and test 

 by the board. Disposition was made of 169 samples. Eleven official 

 samples were found adulterated and misbranded, and it was recom- 

 mended that the consignments be refused entry until correctly 

 labeled. The remaining samples were unofficial, 9 of them being 

 found to be adulterated or misbranded, or both, and in these case^ 

 it was recommended that future shipments be detained, while 145 

 were neither adulterated nor misbranded. Four official samples: 

 were found to be neither adulterated nor misbranded and the ship- 

 ments were released. 



SPECIAL INVESTIGATIONS. 



The routine work necessary in analyzing and testing the official 

 samples collected during the year by the board's inspectors has re- 

 quired so much of the time of the scientists of the board that little 

 time has remained to pursue special investigations for the determi- 

 nation of basic scientific facts necessary in the enforcement of the 

 insecticide act. Therefore, little work has been done along this line^ 

 the work on most of the special investigations remaining at very 

 much the same point as when reported upon a year ago. 



As time permitted during the year studies of the preparation, 

 composition, and properties of certain arsenates of calcium were' 

 continued. Some further work was performed in the preparation 



