These measures of reform (unhappily those measures have not been taken yet in factories in this country) embrace, not only all the parts of the fabrication of matches, but also the cartage and the sale of these products. Their object is to prevent all accidents, and to look to the maintaining of the salubrity of the factories. We shall divide this matter under three heads: -

1st. The fabrication.

2d. The transport and sale.

8d. The salubrity of the shops.

1. Fabrication

1st. Preparation of the Mastic. - Notwithstanding the progress made in the fabrication of the mastic, it is important to require two capital precautions which have been indicated by Mr. Payen. The first consists in completely excluding the sulphur from the substances which enter into the composition of this mastic. The second consists in always dividing the phosphorus while alone, and mix it with the other substances when they are perfectly ground, and that the mixture is conveniently cooled. The precautions to be taken, we have indicated.

After taking measures against the too great explosibility of the mastic, it would be useful to provide against its too great sensibility. Mr. Malbcc has invented an apparatus for deter-mining with precision the degree of sensibility of the paste. This apparatus consists in a vessel conveniently disposed, and containing mercury, heated over a water bath, at about 186°. It is at this temperature that the paste ought to be tried. Saturate with it the end of a match, and dip it into the mercury; if it takes fire, it is a sign that it is too sensible; then increase the quantity of the substances, the object of which is to divide the molecules of phosphorus.