A physician, as we have seen, got the better of the demon in Mrs. Shchapoff's case, at least while the lady was under his care. Really these disturbances appear to demand the attention of medical men. If the whole phenomena are caused by impo... Read more of More Haunted Houses at Scary Stories.caInformational Site Network Informational
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Self-supporting Roofs








In putting up, for instance, self-supporting roofs, or ceilings with wide spans, and steeples or towers, the bridge principle of trussed members should be understood.
The most simple bridge or trussed form is the well-known A-shaped arch.
Fig. 235. Fig. 235.






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