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HAUTEFEUILLE (JEAN de). Invention nouvelle pour se servir fa- 

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HEINRICH (PLACIDUS). See Anonymous. Natur (von der) und der 

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HELIODORUS Larissoeus. De opticis libri n. Gr. fy Lat. animadver- 

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HENNERT (Jon. FREDERICKS). Elementa optices. See Hennert (J. F.). 

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HERIGONE (PIERRE.) Optica, &c. See Herigone (P.) Cursus nm- 

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HERSCHEL (Sir J. F.W.). Light. 4 [London, 1827.] 

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. On the absorption of light by coloured media ; and on the colours 



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. On the absorption of light by coloured media viewed in connection 



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HIGGINS (W. M.). An introductory treatise on the nature and pro- 

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HIGHMORE (JOSEPH). The practice of perspective on the principles 

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HOBBES (THOMAS). De Luce. See Hobbes (T.). Problemata phy- 

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HOOKE(RoBERT). See Anonymous. Micrographia restaurata,ortl\e cop- 

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HUGENIUS or HUYGENS van ZUYLICHEM (CHRISTIAN). See 

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