Figure 1 A thorough and complete preservation of the historic seismograms represents a problem for many observatories and institutions that have inherited the products of a long tradition of seismological observation. Here are extreme two examples of preservation of seismological documents at European observatories.
		a) urgent space requirements force some institutes to stack up large amounts of diverse scientific materials in their attics or cellars, in terrible conservation conditions.		b) the recognition of their great scientific and historical cultural value has, conversely, led some institutions to invest time and money in the proper preservation of the historical seismograms (Jena, Institut fur Geowisseschaften).

back