102 Maine Agricultural Experiment Station. 1919 



Insecticides and Fungicides Analysed in ipiS and ipip. 



Name and Address of 



Maker. Name of Goods 



and Source of Sample 



Claims Made on Label 



Results of Examina- 

 tion 



ARSENATE OP LEAD 



PASTE 

 General Chemical Go.,- 

 New York City. Or- 

 chard Brand Arsenate 

 of Lead Paste. J. T. 

 Gay, Waldoboro. 



Merrimac Chemical Co.. 

 Boston, Mass. Swift's 

 Arsenate of Lead. L. 

 A. Davis, Benton. 



Powers Weighman & 

 Rosengartsn Co., Phil- 

 delphia, Pa. Lead Ar- 

 senate Paste. C. P. 

 Nichols, Orono. 



ARSENATE OP LEAD 



POWDER 

 Corona Chemical Co., 

 Milwaukee, Wis. Co- 

 rona Arsenate of Lead. 

 H. H. Crie & Co.. 

 Rockland. 



Corona Chemical Co., 

 Milwaukee. Wis. Co- 

 rona Dry Powdered 

 Arsenate of Lead. Mor- 

 rison-Joy Co., Ells- 

 worth. 



Grasselli Chemical Co., 

 Cleveland, Ohio. Ar- 

 senate of Lead Pow- 

 der. H. I. Engley, 

 Waldoboro. 



Martin-Senour Co., Chic- 

 ago, 111. Dry Pow- 

 dered Arsenate of Lead. 

 Alexanders' Pharmacy, 

 Main St., Ellsworth. 



Not less than 9.8 per cent total me- 

 tallic arsenic equivalent to not less 

 than 15 per cent arsenic oxide and 

 not to exceed 0.48 per cent in water 

 soluble metallic arsenic equivalent to 

 0.75 arsenic oxide and not to ex- 

 ceed 50 per cent water. Ons pound. 



Moisture not over 50 per cent; arsen- 

 ic oxide 12.5 per cent; lead oxide 

 31.5; water soluble arsenic not over 

 0.75 per cent. One pound. 



Not less than 15 per cent arsenic ox- 

 ide; not more than 0.75 per cent 

 water soluble arsenic; 1 pound on 

 a 5ft per cent water basis. One 

 pound. 



Over 63 per cent lead oxide; 30 per 

 cent arsenic oxide and not over .75 

 per cent free or water soluble ar- 

 senic. Ons pound. 



Lead arsenate 98 per cent; inert 2 per 

 cent; total arsenic 19.5 per cent; 

 arsenic water soluble .5 per cent. 

 One pound. 



Lead arsenate 96 per cent. Inert in- 

 gredients 4 per cent. . Total arsenic 

 expressed as metallic arsenic 20 per 

 cent; arsenic in water soluble form 

 expressed as metallic arsenic 0.50 

 per cent; not over 0.75 per cent 

 water soluble arsenic and arsenious 

 oxide and at least 31 per cent ar- 

 senic oxide. One pound. 



Not less than 30 per cent arsenic ox- 

 ide and not over 1 per cent of ar- 

 senic oxide in water soluble. One 

 pound. 



No. 30485. Slightly 

 low in weight. Com- 

 position as claimed. 



No. 30477. Weight 

 and composition as 

 claimed. 



No. 30473. Weight 

 and composition as 

 claimed. 



No. 30487. Slightly 

 low in weight. Com- 

 position as claimed. 



No. 30498. Weight 

 and composition as 

 claimed. 



No. 30486. Slightly 

 low in weight. Com- 

 position as claimed. 



No. 30496. Below 

 claimed arsenic ox- 

 ide guaranty. 

 Weight as claimed. 



Merrimac Chemical Co., Not less than 63 per cent of lead cal- No. 30475. Jloisture 



Boston, Mass. Swift's 

 Dry Arsenate of Lead. 

 C. E. Alexander, Ells- 

 worth. 



Sherwin-Williams Co., 

 Cleveland. Ohio. Ar- 

 senate of Lead Dry. 

 Jones & Stetson, Dam- 

 ariscotta. 



culated as lead oxide and not less 

 than 25 per cent of arsenic calcu- 

 lated as arsenic oxide. When mixed 

 to a standard paste containing 50 

 per cent water it contains not over 

 % of one per cent water soluble ar- 

 senic. One pound. 



content high. 

 Weight and total 

 and water soluble 

 arsenic as claimed. 



Not less than 30 per cent arsenic ox-! No. 30484. Weight 

 ide and not more than 1 per cent; and composition as 

 of arsenic oxide in water soluble! claimed, 

 form. One-half pound. 



