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41
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42
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43
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44
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45by Heeren, A. H. L. (Arnold Hermann Ludwig), 1760-1842Subjects: “...History, Ancient....”
Published 1846
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46
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47
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48
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49
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50
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51by Donndorff, Johann August, 1754-1837Subjects: “...Science History....”
Published 1817
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52by Braunmühl, Anton von, 1853-1908Subjects: “...Mathematics History....”
Published 1900
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53
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54by Zittel, Karl Alfred von, 1839-1904Subjects: “...Geology History....”
Published 1899
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55
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56
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57
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58by Gleichen-Russwurm, Alexander, Freiherr von, 1865-1947Subjects: “...History Miscellanea....”
Published 1929
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59
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60