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ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



year. A general classification of the articles represented in the 

 collection is as follows: 



IMPORT SAMPLES. 



During the year 35 official and unofficial import samples of insecti- 

 cides and fungicides were collected by the various port laboratories 

 of the Bureau of Chemistry for examination and test by the Board. 

 Disposition was made of 45 samples, 1 official sample being found not 

 adulterated or misbranded, and 5 adulterated or misbranded, or both, 

 and it was recommended that entry to this country be entirely for- 

 bidden or that the consignments be released when correctly labeled. 

 The remaining samples were unofficial, 9 of them being found to be 

 adulterated or misbranded, or both, and in these cases it was recom- 

 mended that future shipments be detained, while 30 were neither 

 adulterated nor misbranded. 



In order to show the progress which has been made each year since 

 the enactment of the law, in reducing violations thereof, a statement 

 of official samples of certain commonly used spraying materials was 

 published in the preceding annual report of the Board. It is deemed 

 of interest to repeat this statement and include with it the year 1915: 



Percentage of violations. 



SPECIAL INVESTIGATIONS. 



During the course of an investigation to determine how lead arse- 

 nates sold in interstate commerce should be labeled, and to obtain 

 scientific information relative to the preparation and properties of 

 the various lead arsenates, the chemists working for the Board have 

 obtained data which have been accepted for publication, under the 



