Om Materialprøvningens Udvikling i Norden
Og om Statsprøveanstaltens Virksomhed

 iiy-s,s iiwVM'' 149 pieces of wood were employed. On observing by one of the ex- periments some splits broken off, which might possibly be due to the swelling of the wood, caoutschouc strips were used instead of pieces of wood. The other 4 bricks were not clasped into straps, but placed in the freezing case, one header-side standing directly on the bottom of the freezing case. There was taken care to place these bricks continually with the same header-side turned down-wards. For the rest the tests followed the same line as usual. Sort A. 1) Clasped into straps. The bricks had apparently not been damaged. 2) Standing on one header-side. In all bricks the header-side turned downwards had been quite frozen off, in 2 of the bricks some other injuries were also observed. Sort B. 1) Clasped into straps. In one of the bricks was observed an inconsiderable disrup- tion of the shell in a corner of the header-side turned down- wards. The other bricks had apparently not been damaged. 2) Standing on one header-side. One of the bricks displayed smaller disruptions of the shell in two corners turning upwards. These disruptions were con- tinued somewhat down Ilie adjacent stretcher-sides. The other bricks had apparently not been damaged. Sort C. 1) Clasped into straps. 3 of the bricks displayed very severe damages on the header- sides turning downwards, in one brick the whole header-side being practically absent, in another the two thirds, in a third the half- part. In a fourth brick a less considerable disruption of the shell in two corners of the header-side turning downwards was observed. 2) standing on one header-side. On all bricks the header-sides turning downwards were frozen off at a thickness of about 1 cm, and apart from this all bricks displayed other very considerable damages.