. Biological studies by the pupils of William Thompson Sedgwick. Published in commemoration of the twenty-fifth anniversary of his doctorate. Biology. Testing the Value of Fumigating Agents 317 there is three inches' overlapping of the door and window ui)on the framing, to minimize the loss of fumigant. In actual practice we have found the leakage from this source is practically w/7. The small door in the back, measuring one foot square, is so arranged that one may paste paper or any fabric over the opening in such a way as to determine its permeability to a given fumigating agent. It is frequ
. Biological studies by the pupils of William Thompson Sedgwick. Published in commemoration of the twenty-fifth anniversary of his doctorate. Biology. Testing the Value of Fumigating Agents 317 there is three inches' overlapping of the door and window ui)on the framing, to minimize the loss of fumigant. In actual practice we have found the leakage from this source is practically w/7. The small door in the back, measuring one foot square, is so arranged that one may paste paper or any fabric over the opening in such a way as to determine its permeability to a given fumigating agent. It is frequently necessary to do this, particularly if one wishes to know the value of such material when emj)l()yefl for closing 5--or H £⢠â =il Back Fig. 4.âBack view of box. Fig. 5.âClosing device for door; the overlapping is the .same as the front door. openings in buildings which are to be fumigated. The function of the glass windows, each one foot square, upon the sides, has already been commented upon. Holes measuring one and one-half inches in diameter are bored at regular intervals through the bottom, top, sides, front, and back of the box. Particular attention is paid to have the alignment with reference to the height above the floor exact, because the dis- tance above the floor is a ver}' important factor to consider with many fumigating substances, particularly if the fumes are light, and consequently very dense at the top of the room, ijut practically. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sedgwick, W. T. (William Thompson), 1855-1921; Ayers, S. Henry; Calkins, Gary N. (Gary Nathan), b. 1869; Dyar, Harrison G. (Harrison Gray), 1866-1929; Fuller, George Warren, 1868-; Gage, Stephen De Meritte, 1874-; Ham, Clara E; Hough, Theodore, 1865-; Jackson, Daniel Dana, 1870-; Jordan, Edwin Oa
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbiology, bookyear1906
