I would go through when they were at dinner, and shut them all off, and come in after dinner and find them all open. They feel the difference in their work, at once. This advantage of having moist air in the mill you all understand. This little valve (pointing it out) has a thread cut upon it similar to a letter V; and as the stem is turned, one way or the other, the opening for the passage of water is opened or closed. This part we have discarded, for fear the pipe would get stopped up. These little wings here (pointing), under the spray valve, were not large enough, and sometimes the moisture would be too much in one place and condense, and twenty feet from there the moisture would not condense; and so we have put in 'larger wings, here, to catch the condensation. These are différent. from the aerophor or the GARLAND system, for the reason that, if you desire it in any particular spot, you can run a pipe from it to where you want it, and you have your moisture.

Two heads of the moistening apparatus were placed in the office, where we are troubled with dry air, and we have found them to be a great comfort, not only for the physical condition, but also preventing our papers and books from becoming so parched and dry. As to the merits of these different apparatus for moistening the air, we should hardly be prepared to say that any one possessed all the merits, but that all had good features. The size of the mill, and the height between the stories, and other conditions, would enter into consideration as to which one of the different processes we should use. The particular feature of the WALLACE process is that it is portable, and can be placed in any location where there is room to put an inch wrought-iron pipe; and also the parts are very accessible and not subject to stoppages from fungus or sediment that is more or less present in the water which w be used for such purposes; for the reason that the valve be opened and a flush given, which, unless the subst very tenacious, will clean the small crevices in the

Mr. W. J. KENT. I am glad to hear that Mr. SMITH'S help are so harmonious, and run the temperature so nicely. If we had that kind of apparatus in our mill, and allowed the help to tamper with it, we should have to keep sixteen policemen to regulate them. Have you any rule about the humidity or temperature in different rooms?

Mr. SMITH. In the Greenwoods Company's mill at New Hartford we have quite a number of different kinds of apparatus for testing or indicating the quantity of moisture in the atmosphere; most of which have found their way on the shelf, for the reason that it has not been found necessary to have any rigid rules in regard to their use. The overseer and help seem to understand, or know intuitively, when there is sufficient moisture in the air; the warps seeming to be a better indicator than any of the so-called hygrodeiks. The atomizers are opened and closed as necessity requires; being better indicated by the running of the work, and the feeling of the help, than by any apparatus that we have thus far been. able to secure.

Mr. S. N. BOURNE. We have one room fixed up in that way, but we have not had the trouble that Mr. SMITH tells about. We have used the apparatus only for a few months. They are all connected with a chain, and they don't need any angels' wings. Mr. SMITH.

That was the other apparatus.

Mr. BOURNE. The room I put this arrangement into is used for spinning. Before, we had trouble with electricity; but since we have introduced this arrangement the electricity gives us no trouble. If one gets stopped up, a little pulling up of the chain once or twice seems to work out the obstruction; but very seldom we have to do that. As far as we have used it we are very much pleased with it. I have ordered some more, but the man who furnished this is one of those slow fellows, and we have not got them yet. There is one advantage about it, and that is, we have not any pumps to

take care of. We used to have the GARLAND system, but it was too much work to keep it in order. This system we now have does not seem to be any trouble, there is so little of it, and I wonder it was not thought of before, so simple a thing. as it is.

A MEMBER. Where do you take your water from?

Mr. BOURNE. From the city; we don't get it from the Amoskeag.

Mr. BAKER. I had not intended to speak of the very simple system we have in one of our mills at Ware, but I may add a suggestion with regard to the blower system. In our weaving mill, with two floors, we have been experimenting for a few weeks with the blower system, and I think it will be successful, both with reference to introducing fresh. air and also a sufficient degree of moisture for weaving. The plan is exceedingly simple: we have a small brick chamber in the basement, and, in connection with that, use the blower, introducing pure air into this chamber, and also water through a perforated pipe, to mingle with the current of air through a perforated pipe, regulating the amount of water introduced with an ordinary valve; and then conduct it to the weaving room through a simple galvanized-iron pipe, reducing the size of the pipe as it extends through different parts of the room, having small openings with iron dampers, so it can be regulated at different points where a current may need to be regulated. It is very simple and somewhat crude at present during this experimental stage, but as a means of introducing pure air for the benefit of the operatives and a sufficient degree of moisture it affords a very simple and I think successful method. It has not so far progressed that we can speak very positively of its success, but I think the indications are sufficient to lead us to suppose that it will accompli both the features spoken of in this discussion.

Mr. W. J. KENT. I wish Mr. GOODALE would explain system he has in operation.

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Mr. GOODALE. I can substantiate what Mr. BAKER has said. We use the blower system in one of our mills. In the air duct I put in a perforated pipe, the perforations being as fine as I could make them. This perforated pipe is supplied with water from a tank in the attic. The air from this duct comes up through pilasters on the north side of the mill, and is introduced into each room with the result that the humidity in the weaving rooms varies from 70 to 75. It helps us materially in the weaving, and the expense is very trifling.

Mr. MESSENGER. Do you use cold water?

Mr. GOODALE. Cold water and pressure.

Mr. A. F. KNIGHT. How do you cool the water?

Mr. GOODALE. We have a box in front of the blower which can be filled with cheap ice which can be used to cool the air of the rooms above.

Mr. GULLIVER. I should like to ask a question in regard to the amount of humidity required for different numbers of yarn, whether members have found it necessary to have a higher degree of humidity, as the yarn grows finer; and also whether the same humidity should be maintained in the mule room as in the spinning room?

Mr. W. E. PARKER. If I understand Mr. BAKER Correctly, I should think Mr. GooDALE'S method the best one. I understand that Mr. BAKER moistens the air before it is heated. Am I correct?

Mr. BAKER. No. We introduce a We introduce a steam jet into the same room where we moisten the air.

Mr. PARKER. The method I have employed with the blower system has been to introduce a water and a steam pipe into the air duct which conveys the air to the mill. Heated air will carry a greater amount of moisture than cold air. I think it is better to introduce the moisture after the air is heated. We have both water and steam in our air duct.

Mr. BAKER. It was in following out that theory that we