[The strength and elasticity of the dura mater].

The strength and extensibility of human dura mater cold-preserved at--30 degrees--50 degrees and stored for up to 2 years were investigated. A total of 38 preserved and 5 fresh specimens were tested. The test-trials were made by using standard tensile-testing machines; The strength of preserved dura mater specimens was found to vary from 0.4 to 2 kg/mm2 and of the fresh ones--from 0.4 to 1.1 kg/mm2. The extensibility of the speciments equalled 10--30 per cent without any marked difference between the fresh and preserved ones. The duration of storage of the preserved dura mater does not affect adversely its strength.