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How to Keep Ice in Summer

New York have recommended a disinfecting

No refrigerator or ice-box will prevent, or even fluid composed of sesquichloride of iron, retard the melting of the ice, which does not chloride of manganese, chlorine, and carcombine the following conditions: It must bolic acid. The sesquichloride of iron has have double sides, bottom, and lid, with the been found by experiment to deodorize more space between the two casings filled with effectually than chloride of lime, sulphate of some non-conducting substance, in order to zinc, or other disinfectants. It is therefore ; exclude the external temperature; and the recommended as an important constituent of inner lid or cover should be practically, if not any disinfectant. Sesquichloride of iron is hermetically, air-tight, in furtherance of the prepared by dissolving the hydrated sesquioxsame result. If external air enters, it will ide of iron in muriatic acid; to this is added bring its own temperature with it. There 10 per cent. of carbolic acid. This forms the should be also a drainage-pipe at the bottom fluid in a concentrated form, and is largely to carry off, instantaneously, every drop of diluted with water at the time of using. All water formed by the melting of the ice, and night scavengers are compelled by the Board this pipe should either be fitted with a trap or of Health of New York to use it. Its effects curved in such a manner as to prevent the are compound. The iron checks fermentacold air from escaping. It is even more indis- tion, and the chlorine acts as an oxidizing pensable to carry off every drop of the water agent. Its carbolic acid also aids in arresting than it is to exclude the air-a view not decomposition and fermentation, and the generally entertained by consumers of the whole combination, therefore, by its chemical article, but which, according to experiments action, decomposes the sulphuretted hymale, seems to be fully demonstrated. Thus, drogen.

1694. To Disinfect Stables and on exposing a piece of ice weighing, say 25 pounds, to the air, at a temperature of 75°, but Slaughter-Houses. Dr. Letherby, Health so placed that it is perfectly drained, it will be officer of the city of London, says in a recent found to have scarcely disappeared at the end report on the subject, that the best disinfectof 24 hours. Wrap the same piece in 3 or 4 ant for stables and slaughter-houses is a thicknesses of blanket or flannel, and place it mixed chloride and hypochlorite of zinc, and in a small tub exposed to the same tempera- it has the advantage of mixing freely with ture, and as the water filters through the the liquid matters of the slaughter-house, and blanket, the ice will stand in its own water, and not tainting the meat with any unpleasant will be all dissolved in 5 or 6 hours. Wrap odors; and it is also applicable to the disinthe same piece of ice carefully in a blanket, fection of houses in place of chloride of lime, and place it on a grating, or on four crossed sticks, so that no water can accumulate underneath, and at the end of 3 or even 4 days it will not have entirely melted.

Disinfectants which it much resembles in its chemical nature and mode of action.