226 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 10 



pies of lead arsenate taken were in violation of the act, whereas in 1911-12, 60 per 

 cent violated the law. Similarly the violations found in lime-sulphur solutions had 

 fallen from 94 per cent to 14 per cent, and Bordeaux mixture from 98 per cent to 36 

 per cent. Only 19 per cent of the shipments of Paris green examined showed any 

 violation, whereas in 1911-12, 28 per cent of these shipments were objectionable. 



While these results are probably due partly to the effect of deterrent prosecutions, 

 they are due in even greater measure to the assistance the Department's scientists 

 have accorded to manufacturers in making their products of standard strength and 

 to the growing practice on the part of manufacturers of adapting themselves to im- 

 proved methods and tests. 



In this work during the past year, the inspectors collected 1,487 samples of dif- 

 ferent shipments. Of these, 190 were of insecticidal jireparations for household use and 

 221 were of disinfectants, germicides, and bactericides for the prevention of diseases 

 of human beings as well as of domestic animals. The Department during the past 

 year has given particular attention to the prevention of the sale in interstate com- 

 merce of products recommended for household use which are either impotent or the 

 value of which is misrepresented on labels. Many samples of arsenates, Bordeaux 

 mixtures, sulphur, and other preparations also were taken. 



In preventing the importation of misbranded or adulterated insecticides, the Insec- 

 ticide and Fungicide Board collected 35 import samples. In the case of .5 prepara- 

 tions it was recommended that entry into this country be entirely forbidden or that 

 the consignments be released only after being correctly labeled. In 9 other cases it 

 was recommended that future shipments be detained. The remaining samples com- 

 plied with the law. 



The Board devotes considerable attention to investigational work for the deter- 

 mination of the value of various commercial insecticides and fungicides. It an- 

 nounces that it has under way tests of the merits of commercial dust and Uquid sprays 

 in the control of insects and diseases. These will include tests of articles composed 

 of finely ground sulphur in combination with arsenate of lead, with a diluent such as 

 finely ground lime or gypsum. The Board also is investigating the value of different 

 commercial pyrethrum powders, tobacco powders, nicotine solutions, etc., when used 

 as sprays, dusts or fumigants. Experiments have been made to determine the action 

 of potassium cyanide and other substances in the control of insects and plant dis- 

 eases when injected into the tissues of plants. 



New Jersey Mosquito Meeting. The fourth annual meeting of the New Jersey 

 Mosquito Extermination Association was held at the Hotel Traymore, Atlantic City, 

 January 25 and 26. In point of general interest, attendance, and practical papers 

 thoroughly covering the subject of mosquito control, this convention was perhaps 

 the most successful ever held in the state or elsewhere. The following program was 

 well carried out: — 

 "Present Status of the Mosquito Work." 



By Wilham Edgar Darnall, M. D., Atlantic City. 

 " The Circulation of Water on the Drained Salt Marshes — the need for and the way 

 to obtain it." 



By James E. Brooks, M. E., Glen Ridge. 

 "The General Principles of Salt Marsh Drainage." 



By Harold I. Eaton, Atlantic City. 

 "The Maintenance of Salt Marsh Drainage Systems." 



By WilUam Delaney, Jersey City; John W. Dobbins, Newark; Fred A. Reilly, 

 Atlantic City; Harry G. Van Note, Oakhurst; Stephen Johnson, Manahawkin. 



