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 HIPPOCRATES. See Ypocrates. 

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 HODGSON (JAMES). Astronomy and navigation, &c. See Hodgson 



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 . The theory of Jupiter's satellites, with the construction and use of 



the tables for computing their eclipses, to which is added an account of 



the several methods proposed for fixing the longitude of places. 4 



London, 1749. 

 HOLDER (WILLIAM). A discourse concerning time ; with application 



of the natural day, and lunar month, and solar year, as natural ; and of 



such as are derived from them as artificial parts of time, for measures in 



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HOLWARDA (JOHANNES PHOCYLIDES). See Phocylides (J. H.). 

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See Sacrobosco (J. de). 



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 . The posthumous works of containing lectures for improving 



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 HOPTON (ARTHUR). Speculum topograpJiicum, or the topographicall 



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 HORNIUS (GEORGIUS). Dissertatio de vera estate mundi. 4 Lugduni 



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 HORREBOWIUS (CHRISTIANUS). Vimlicias anne Dionysianoe. See 



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 HORREBOWIUS (PETRUS). Operum mathcmatico-physicorum tc- 



mus primus continens clementa matheseos, in progressionem harmoni- 



cam mathemata, clavem astronomiee ; torn, n continens historiam re- 



formationis calondarii inter evangelicos, annotationes in monumenta 



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