By quoting thus largely from Professor Youmans, we bring good authority for the particular and earnest advice we have offered to our “young housekeepers” with regard to the drying and ventilating every part of their houses. We doubt not many a one, who has begun with sound health, has gradually sunk into a confirmed invalid, when the principal cause could be traced back to carelessness in this seemingly unimportant duty. And those who are thus slowly poisoned by the impure air which comes through this neglect of duty are the most ready recipients of all infectious and epidemic diseases. It is always well to have either a bath full of water near where one sleeps, or, if no bath, a pail or tub full set into the room, as water is one of the best disinfectants, cleansing the air by taking up all the impurities from it as fast as they arise. But this water should be let off in the morning, and fresh water used for bathing or washing; and if you need drinking water in your bedroom,--and it is well always to have it near,--do not let it remain open in your room, as it absorbs impurities, and would be unfit for drinking; but either have a lid to your pitcher or cover it over with a thin cloth, to keep dust and insects out, and set it on the ledge _outside_ your window, in the pure, fresh air. XIV. MILK AND BUTTER. JULY and August are trying months for those who have charge of milk and butter, unless the work to be done is performed in large establishments devoted entirely to it. When a milk-house is built under large trees, to shield it from the fierce heat of the mid-day sun, with a stream of pure cold water running through it, the labor is diminished full one half. Indeed, we should not call it labor, but an exhilarating amusement to take charge of such an one as we saw, a few weeks ago, in Norwich, Chenango County, New York. We have not thought of it since without a longing, amounting almost to coveting our neighbor’s work. To find this house among the trees, away from the confusion and turmoil of the town, which is shaken by the ceaseless din of more noisy occupations, was most restful and tranquillizing; the music of the rich, green leaves among the long sweeping branches, and the murmur of the restless brook, could not fail to give a spring and elasticity to the spirits that must, in a great measure, overcome the sense of fatigue. This was our first impression, as we stood outside the unpretentious building, and it was in nowise changed when we stepped upon the smooth floor, as white as good soap, fresh water, and a willing arm could make it.