Heritage Science

Table 1 Sample sizes as the number of items analysed in each stratum of the C and NC collections

From: Non-destructive collection survey of the historical Classense Library. Part I: Paper characterisation

C Stratum	No of books	Sample size	NC Stratum	No of books	Sample size
1301–1400	3	3
1351–1450	15	11
1401–1500	101	16
1451–1500	800	60
1501–1600	61	16	1501–1550	1235	12
1501–1600	61	16	1551–1600	2996	12
1601–1700	98	17	1601–1650	1280	12
1601–1700	98	17	1651–1700	1171	12
1701–1800	145	14	1701–1750	2586	12
1701–1800	145	14	1751–1800	3767	12
1801–1900	8	8	1801–1850	4235	12
1801–1900	8	8	1851–1900	9470	18
			1901–1950	27,531	50
Total	1231	145	Total	54,271	152

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