Salt does very little to preserve butter. It retards the decomposition of the caseous and albuminous materials left in it; but if butter is properly made of cream not mixed with loppered milk and is completely washed with pure water, it is a fair question if butter will not keep longer without salt than with it. There are instances on record where butter has been kept sweet without salt for a long time. We half suspect that, though salt at first retards decomposition, the salt itself, in time, decomposes and becomes sodium and chlorine gas, or enters into new combinations with the constituents of the butter, and thus makes new compounds that do not in the least improve the flavor. We have no positive evidence of this, but have had this suspicion awakened by facts related about the keeping of butter and by a process of general reasoning. It is true that salt is one of the most stable compounds known, but we have proof that it can be resolved into its original elements, when stronger affinities are presented for one or both of them to unite with. It would not, therefore, be strange if such decomposition sometimes follows when used in our food preparations. PACKING BUTTER. It is quite a knack to properly pack butter in large packages, and the work needs to be carefully done. Some use it too violently, by pounding it down, and thus making the butter greasy or oily. It should be gently pressed together in the package in such a way as to leave no spaces filled with air, for the air will surely mingle with the surrounding butter and injure its flavor. A good way is to begin the pressure at the center and work carefully toward the circumference, so that all air may escape at the sides. In this way, perfect solidity of the mass is secured, and it is left in the best condition for keeping, so far as the packing is concerned. PREPARING THE PACKAGE. Before putting the butter in the package, the package should be soaked in water, so as to remove the taste of the wood, and then thoroughly soaked in saturated brine, so that the wood will not draw the salt from the butter which comes in contact with it. If it does, the butter thus deprived of salt will turn white, have a sickish flavor, and soon turn rancid. It is a good idea to not only sprinkle a thin layer of salt over the bottom of the package, but to rub the moist inner sides with dairy salt, and thus make sure that there is salt enough in contact with the wood to prevent its absorbing the salt from the butter. CLOSING THE PACKAGE.