The owner of such an establishment, as the one alluded to, is generally far from being parsimonious, and very likely fond of giving sumptuous entertainments, and in all his intercourse with his family and society may manifest the most generous feelings, and show his liberality in a thousand acts of kindness and benevolence; but did he know the consequences upon himself, family, and friends of his heating apparatus, its fuel-saving qualities would have very little influence upon him. We are fully aware that to those who are very poor, and find it hard in cold cimates to secure fuel enough to keep themselves warm - the tight air-stove is perhaps the best thing for them under such circumstances, which can be introduced into their humble abode. But in such rooms as they are generally obliged to occupy, they suffer much less for the want of ventilation than those who live in houses where all the windows and doors are so nicely fitted, that the external air is entirely excluded. In many of the coal-stoves which have lately been introduced, the coal burns so slowly, that the carbonic acid gas, which is generated (being half as heavy again as the atmospheric air,) cannot ascend through the smoke-pipe and chimney-flue with the temperature which is generally maintained a few feet from the point of combustion.

Dr. Ure, one of the most scientific writers of the day, says that " carbonic acid gas cannot ascend at the temperature of 250 deg. F," but regurgitates into the apartment through every pore of the stove, and poisons the atmosphere* " I have," says he, "recently performed some careful experiments upon this subject," and find that when the fuel is burning so slowly in the stove as not to heat the iron-surface above the 250th or 300th degree of Fahr., there is a constant dcllux of carbonic acid gas from the ash-pit into the room. " I shall, (he says,) " be happy to afford occular demonstration of this fact to any incredulous votary of the pseudo-economical, anti-ventilating stoves now so much in vogue. There is no mode in which the health and life of a person can be placed in more insidious jeopardy than by sitting in a room with its chimney closed up with such a choke-damp - vomiting stove".

"We could quote language and facts of a similar character from a great variety of the most reliable authors, but if we can induce any of our readers to observe the consequcnee in their own dwelling of these modern machines, we shall have gained more than by simply inducing them to peruse these opinions, however reliable they may be. In most of our churches, public halls, school-houses, court-rooms, places of public amusement, offices, stores, work-shops, etc, we meet in this section of the country, the same unwholesome atmosphere; and almost the only variety to be observed in the mode of heating the room is in the form of the stove. If you enter a public hotel, the first thing you meet in the office or bar-room (if in winter,) is a large box-stove. If you go to the dining-room, you meet the same thing again, with perhaps a hundred feet of smoke-pipe crossing the room at different points; and the offensive character of the atmosphere gives you a sense of fullness in the head, while perhaps a disposition to vertigo compels you to leave the public rooms and retire to the one allotted to you.

Then you will probably find a neat little elegant gothic pattern red-hot by way of showing you a little variety, and if you are compelled to lower a window for your relief, and wake up at midnight with a severe cold, you may console yourself with the fact, that your beautiful little stove is of the latest and most approved fashion, and consumes less fuel than any one ever before in-Tented. If you stop long in the place, and stay over the Sabbath, and have been properly educated, you will of course go to church, and it is your own fault if you do not find one of beautiful proportions, handsomely finished, and elegantly decorated. The stove wilt be larger than the one at your hotel, and one will be placed in each corner of this splendid edifice. The sexton will fire up as often as is necessary, and keep you perfectly warm. -It is true the air may soon become very disagreeable, and the eloquent voice of the speaker sound dry and husky; if he cannot relieve it by moistening his vocal organs quite frequently with cold water, you may not be at all pleased with its tones, silvery and agreeable as they were at first. But do not blame him.

He is suffering for the purpose of keeping the audience perfectly warm, and if you see a considerable proportion of the congregation asleep, particularly if the house is fall, do not wonder at it, for the atmosphere has been so thoroughly dried and respired that there is not oxygen enough remaining to give them the ability of keeping awake. If now and then a delicate lady near you faints away, help her out as quick an possible into the fresh air. You need not send for a pitcher of fresh water to throw in her face. The pure unadulterated atmosphere is abundantly sufficient to restore the circulation, though she may suffer some time afterwards. This kind act being performed, you can return again to the church much invigorated. If after this experience you come to the conclusion that all these difficulties are caused by the use of a close stove, you need not mention it to others, for they have heard of it before. If your own house is warmed and ventilated according to modern notions, you may perhaps congratulate yourself in leaving the town. In the railroad cars, you expect to get into a different atmosphere, but as soon as you enter, you will only find a different pattern of stove made exsressly for railroads.

The passengers may insist that every window shall be kept closed, and you have no alternative but to remain a victim to ihe foul pent up air which is so common under such circumstances, until you reach the end of your journey.

" We have spoken thus freely of the use of the common box and tight-air stove, and did we not know from experience and observation, and were we not supported by the highest medical authority, and most unequivocal chemical tests, that the evils resulting from their general use far exceed any and all of our allusions, we should hesitate as to the propriety of attacking a system which is so universally adopted. We know that many persons have their houses so constructed, that it is difficult for them to make any change in this department of their domestic arrangements. But if we shall be successful in inducing those who have seen and felt the evil effects of heating their houses, without any reference to ventilation or the quality of the atmosphere they inhale at every breath, they will be the better prepared to appreciate the improvements which have lately been introduced. In some parts of the country, several attempts have been made to introduce a kind of stove which will warm a current of fresh air directly introduced from the outside. It is impossible to ventilate a room by drawing off the foul air without introducing a corresponding amount into the room from some source.

If cold air be introduced for the purpose of ventilation, all the warmed air will pass off through the ventiduct, and the cold air remain. We need hardly say that, under such circumstances, it is impossible to make a room comfortable. To overcome this difficulty, a ventilating stove has lately been introduced in different parts of Europe and in some of the eastern towns of this country".

The pamphlet is filled with suggestions and explanations relating to the best mode of ventilating and warming, much of which we have published in the "Country Houses" - but which we trust will meet a wider circulation in this form. If a million of copies could be circulated in the United States, it would be an immense and incredible saving of health to the people at large.

Bad air is a " slow poison." That is the trouble. People go on taking it into their lungs day after day, and night after night. They grow pale, their lungs suffer, the circulation is languid, they take colds readily; the chest, the stomach, the skin, become disordered, and a host of chronic diseases attack them. A little carbonic acid taken every day don't kill a man. It is almost a pity it did not! If a red-hot stove destroyed, instantly, one man in every town daily, for a week, there might be some salvation for the nation. If instend of fainting away in crowded and badly ventilated public assemblies, people orca-finally died outright in convulsions, the authorities would take the matter in hand, and make it penal for the owners of such buildings to open them for public use without attending to the proper conditions for the preservation of health. When a tiling is only a "slow poison," the age is too much in a hurry to attend to it.

In such cases we must wake up the public lethargy by facts. And here is one of them. We have before us the History of the Dublin Lying-in Hospital. Some years ago, this building, erected in the common way, without the slightest regard to ventilation, was found to exhibit a great amount of mortality among the young children born there. In four successive years - healthy seasons too - out of 7,650 infants brought forth in the hospital, 2,244 died within the first fortnight after birth, of convulsions, or what the nurses call nine-days fits. These children foamed at the mouth; the jaws became firmly closed; the face swelled and assumed a purplish hue, as though they were choking. " This last circumstance suggested to the physician that a deficiency of wholesome air was connected with the great mortality." Air pipes were immediately contrived; the various rooms were well ventilated. What was the result? That in the three following years, out of 4,243 children born in that hospital, only 165 died.

In the very same rooms, too, where, according to the old ratio, before the ventilation took place, the number of deaths to that number of children, would have been 1,632. To save the lives of more than 1,400 human beings in three years, by merely putting in a few pipes! Can any one say there is nothing in ventilation, after such facts as these?