Show submerged timber athe strength of a hemlock stick a 1 foot oot 0 o t 8 square aare ul that had been Gater for almost forty years denra was waa recently tested est in the pound testing machino machine at rensselaer Rene selaer P polytechnic oly in institute st at troy in new york the timber which was 16 feet 9 inches long had formed part of one of tte the piers of the congress street bridge at troy when the pier broke down after the flood in the spring of 1913 tile timber was turned over to one of the mate rial testing laboratories of the institute it was wag kept in the open air for three three months and then placed tn in a dry room for a little more than nine months when placed in the testing machine the caluen failed under a toad of pounds that Is the long submerged wood showed an ultimate strength of 2670 pounds to the square inch in tho the opinion of prof T H R lawson who conducted the test the remarkable strength ot of this piece of hemlock seems to show that being immersed in water for a long time does not decrease the column strength of timber that is subsequently permitted to dry out youths youth ia companion Comi anlon |