COMPILATION OF LAWS. 49 



or 700 cc, and pure hydrogen sulphid is passed through, at first with a little 

 heating, then in the cold. 



ART. XIX. After twelve hours the precipitate, consisting wholly or in part of 

 brown organic matter, is filtered on an asbestos filter. The filter is prepared by 

 suitable layers of asbestos in a funnel with a glass stopcock. After a short wash- 

 ing of the precipitate the stopcock is closed and the precipitate is treated with a 

 few cubic centimeters of brom-hydrochloric acid, under cover of a watch glass 

 or glass plate. The brom-hydrochloric acid is prepared by dissolving bromin in 

 hydrochloric acid, sp. gr. 1.19. After a half hour's action the solution is allowed 

 to flow through the stopcock into a precipitating flask. The residue upon the 

 asbestos filter is washed down with hydrochloric acid, sp. gr. 1.19. 



ART. XX. The contents of the precipitating flask are treated again with an 

 excess of ferric chlorid and washed by means of hydrochloric acid, sp. gr. 1.19, 

 into a second smaller retort, which is in other respects the same as the one 

 described under XVI. It is distilled as described in XVII, allowed to cool, treated 

 with hydrochloric acid, sp. gr. 1.19, and distilled again. 



ART. XXI. The distillate is now as a rule as clear as water. It is diluted with 

 distilled water to about 700 cc, treated with hydrogen sulphide as in XVIII, fil- 

 tered after twelve hours through a filter that has been washed with di ute hydro- 

 chloric acid, then water, then alcohol, dried at 100 C., and weighed. The pre- 

 cipitate is then washed, first with water, then with absolute alcohol, then with 

 warm carbon bisulphid, and finally again with absolute alcohol, dried at 110 C., 

 and weighed. 



ART. XXII. From the arsenious sulphid is calculated the arsenic, and taking 

 into consideration the area contents according to XIV the amount of arsenic per 

 100 sq. cm. is determined. 



ITALY. 



This countiy has no laws which limit the quantity of arsenic in 

 wall papers, fabrics, etc. However, by a royal decree of September 

 17, 1886, which ratines the law of February 11, 1886, the employment 

 of children in certain industries, sucli as those in which poisonous 

 substances such as arsenic, etc., are used in large quantities, is pro- 

 hibited. 



THE NETHERLANDS. 



This country has no laws regulating the use of arsenic or substances 

 containing it in the manufacture of wall papers, fabrics, etc. 



RUSSIA. 



The following extracts are taken from the Russian code of 1902: 



Page 654: The introduction from foreign countries as well as the sale and manu- 

 facture in Russia of dyestuffs consisting chiefly of an arsenical base is absolutely 

 prohibited. 



Page 655: The introduction from foreign countries as well as the sale and manu- 

 facture in Russia of delicate fabrics such as organdie, tarlatan, muslin, etc., 

 which are dyed uniformly with an arsenical dye is absolutely prohibited. 



Page 656: The prohibitions contained in pages 654 and 655 do not extend to 

 the introduction and sale of materials which contain isolated figures, flowers, 

 leaves, patches, streaks, etc., produced by the use of arsenical dyestuffs, while 

 the greater portion is dyed with other nonarsenical materials. 



Page 657: The introduction from foreign countries, sale, and manufacture in 



