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Instruction et arrets du 15 septerabre 1916 r61atifs i la vente et & 

 I'emploi en Agriculture des composes arsenlcaux. [Instructions 

 and order of the 15th September 1916 relating to the sale and use 

 in agriculture of arsenical compounds.] — Jl. Soc. Nat. d' Hortic. 

 de France, Paris, xvii, October 1916, pp. 146-149. 



The French Minister of Agriculture has issued an order, dated 15th 

 September 1916, regulating the sale and the use in agriculture of 

 insoluble arsenical compounds, the use of soluble forms of arsenic 

 being prohibited. The complete text is given in this article and also 

 that of the official instructions interpreting it. Insoluble arsenical 

 compounds may only be sold and used if mixed with a coloured and 

 odorous substance ; the order prescribes the addition of 20 per 

 thousand of p\Tidin, crude phenol, or nitrobenzene, and 2 per thousand 

 of " vert sulfoconjugue," the mixture being made perfectly homo- 

 geneous. A license is required by traders, and both traders and users 

 must keep arsenicals locked up, away from food intended for human 

 ©r animal consumption. Arsenicals may only be sold in metal con- 

 tainers bearing prescribed labels, including one with the name of the 

 vendor. A retailer must paste his name over that of the supplier, 

 who is not deemed to be the vendor where a retail customer is concerned. 

 All sales must be entered in a special book, which must not be destroyed 

 for 10 years after use. A written order, or receipt of delivery, i.s 

 required, and this must be kept for three years. No arsenical com- 

 pounds may be used for market-garden or forage crops. They must 

 not be used for poisoning seeds, or for destroying weeds in garden 

 paths, etc. In vineyards, arsenical compounds are permitted, but 

 must not be used after flowering. The only fruit-trees to which they 

 may be applied arc the apple, pear and plum, but treatment must 

 be interrupted at blossoming time and definitely discontinued 15 days 

 after resumption. Beets may be treated until one month after planting 

 out. Osier-beds and nurseries of trees not bearing edible fruits may 

 be treated with arsenical compounds at any time. 



F. P. L'interdiction de I'emploi des " composes arsenicaux solubles " 

 en viticulture. [The prohibition of the use of soluble arsenic 

 compounds in vine-growing.] — Rev. Viticulture, Paris, xlv, 

 no. 1164, 19th October 1916, pp. 247-248. 



It is stated that vine-growers in France and Algeria are protesting 

 against the above order forbidding the use of soluble arsenical com- 

 pounds, it being pointed out that sodium arsenates and potassium 

 arsenites have been in use for many years without bad results and that 

 they provide the chief defence against Haltica ampelophaga, Spar- 

 ganothis pilleriana, Feltia (Agrotis) exclamationis, etc. 



L*empIoi des arsenicaux solubles. [The use of soluble arsenicals.] — 

 Rev. Viticulture, Paris, xlv no. 1167, 9th November 1916, p. 304. 



It is stated that the use of soluble arsenicals, though prohibited by 

 recent legislation [see above], will be permitted during the current 

 season. Manufacturers who have purchased raw material, and vine- 

 growers who have already bought these arsenicals, will therefore be 

 nnaffected. 



