The remarkable durability of this stove is another economic feature; for, in addition to its fine castings and nice-fitting workmanship, all the parts liable to burn out are so protected by linings, and other contrivances easily renewed, that the stove itself may pass from one generation to another, as do ordinary chimneys. The writer has visited in families where this stove had been in constant use for eighteen and twenty years, and was still as good as new. In most other families the stoves are broken, burned out, or thrown aside for improved patterns every four, five, or six years, and sometimes, to the knowledge of the writer, still oftener. Another excellent point is that, although it is so complicated in its various contrivances as to demand intelligent management in order to secure all its advantages, it also can be used satisfactorily even when the mistress and maid are equally careless and ignorant of its distinctive merits. To such it offers all the advantages of ordinary good stoves, and is extensively used by those who take no pains to understand and apply its peculiar advantages. But the writer has managed the stove herself in all the details of cooking, and is confident that any housekeeper of common sense who is instructed properly, and who also aims to have her kitchen affairs managed with strict economy, can easily train any servant who is willing to learn, so as to gain the full advantages offered. And even without any instructions at all except the printed directions sent with the stove, an intelligent woman can, by due attention, though not without, both manage it, and teach her children and servants to do likewise. And whenever this stove has failed to give the highest satisfaction, it has been either because the draught of the chimney was poor, or because the housekeeper was not apprised of its peculiarities, or because she did not give sufficient attention to the matter, or was not able or willing to superintend and direct its management. The consequence has been that, in families where this stove has been understood and managed aright, it has saved nearly one-half of the fuel that would be used in ordinary stoves, constructed with the usual disregard of scientific and economic laws. And it is because we know this particular stove to be convenient, reliable, and economically efficient beyond ordinary experience, in the important housekeeping element of kitchen labor, that we devote to it so much space and pains to describe its advantageous points.[3] [3] A letter to the author, inclosing twenty-five cents for expense of time and correspondence, will secure a circular with further account and directions for using this stove. Direct—Care of Dr. G. H. Taylor, New York city. CHIMNEYS.