In Southern climes, where doors and windows may be safely kept open for a large part of the year, pure air is cheap enough, and can be obtained without any special effort: but in Northern latitudes, where heated air must be used for nearly three-quarters of the year, the neglect of ventilation is fast causing the health and beauty of our women to disappear. The pallid cheek, or the hectic flush, the angular form and distorted spine, the debilitated appearance of a large portion of our females, which to a stranger, would seem to indicate that they were just recovering from a long illness, all these indications of the lamentable absence of physical health, to say nothing of the anxious, care-worn faces and premature wrinkles, proclaim in sorrowful voices, our violation of God's physical laws, and the dreadful penalty with which He visits our transgressions.
Our people must, and I have no doubt that eventually they will be most thoroughly aroused to the necessity of a vital reform on this important subject. Open stoves, and cheerful grates and fire-places will again be in vogue with the mass of the people, unless some better mode of warming shall be devised, which, at less expense, shall make still more ample provision for the constant introduction of fresh air. Houses will be constructed, which, although more expensive in the first cost, will be far cheaper in the end, and by requiring a much smaller quantity of fuel to warm the air, will enable us to enjoy the luxury of breathing air which may be duly tempered, and yet be pure and invigorating. Air-tight and all other lung-tight stoves will be exploded, as economizing in fuel only when they allow the smallest possible change of air, and thus squandering health and endangering life.
The laws very wisely forbid the erection of wooden buildings in large cities, and in various ways, prescribe such regulations for the construction of edifices as are deemed to be essential to the public welfare; and the time cannot, I trust, be very far distant, when all public buildings erected for the accommodation of large numbers, will be required by law, to furnish a supply of fresh air, in some reasonable degree adequate to the necessities of those who are to occupy them.
I shall ask no excuse for the honest warmth of language which will appear extravagant only to those who cannot, or rather will not, see the immense importance of pure air to the highest enjoyment, not only of physical, but of mental and moral health. The man who shall succeed in convincing the mass of the people, of the truth of the views thus imperfectly presented, and whose inventive mind shall devise a cheap and efficacious way of furnishing a copious supply of pure air for our dwellings and public buildings, our steamboats and railroad cars, will be even more of a benefactor than a Jenner, or a Watt, a Fulton, or a Morse.
To return from this lengthy and yet I trust not unprofitable digression.
In the ventilation of my hive, I have endeavored, as far as possible, to meet all the necessities of the bees, under the varying circumstances to which they are exposed, in our uncertain climate, whose severe extremes of temperature impress most forcibly upon the bee-keeper, the maxim of the Mantuan Bard,
"Utraque vis pariter apibus metuenda."
"Extremes of heat or cold, alike are hurtful to the bees." In order to make artificial ventilation of any use to the great majority of bee-keepers, it must be simple, and not as in Nutt's hive, and many other labored contrivances, so complicated as to require almost as constant supervision as a hot-bed or a green-house. The very foundation of any system of ventilation should be such a construction of the hive that the bees shall need a change of air only for breathing.
In the Chapter on Protection, I have explained the construction of my hives, and of the Protector by which the bees being kept warm in Winter, and cool in Summer, do not require, as in thin hives, a very free introduction of air, in hot weather, to keep the combs from softening; or a still larger supply in Winter, to prevent them from moulding, and to dry up the moisture which runs from their icy tops and sides; and which, if suffered to remain, will often affect the bees with dysentery, or as it is sometimes called, "the rot." The intelligent Apiarian will perceive that I thus imitate the natural habitation of the bees in the recesses of a hollow tree in the forest, where they feel neither the extremes of heat nor cold, and where through the efficacy of their ventilating powers, a very small opening admits all the air which is necessary for respiration.
In the Chapter on the Requisites of a good hive, I have spoken of the importance of furnishing ventilation, independently of the entrance. By such an arrangement, I am able to improve upon the method which the bees are compelled to adopt in a state of nature. As they have no means of admitting air by wire-cloth, and at the same time, of effectually excluding all intruders, they are obliged in very hot weather, and in a very crowded state of their dwellings, to employ a larger force in the laborious business of ventilation, than would otherwise be necessary; while in Winter, they have no means of admitting air which is only moderately cool. I can keep the entrance so small, that only a single bee can go in at once, or I can, if circumstances require, entirely close it, and yet the bees need not suffer for the want of air. In all ordinary cases, the ventilators will admit a sufficient supply of duly tempered air from the Protector, and the bees can, at any time, increase their efficiency by their own direct agency, while yet they will, at no time, admit a strong current of chilly air, so as to endanger the life of the brood. As bees are, at all times, prone to close the ventilators with propolis, they must be placed where they can easily be removed, and cleansed, by soaking them in boiling water.