150 ASTRONOMY. 



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. Astronomiae physicee et geometries elementa ; accesserunt prsefatio 



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. The elements of physical and geometrical astronomy, to which is 



annex'd Dr. Halley's synopsis of the astronomy of comets ; the whole 

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GREGORIUS (JACOBUS). Optica promota cui subnectitur appen- 

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GREGORY (OLINTHUS). A treatise on astronomy. 8 London, 1803. 



GRIMANI (RAFAELLO). Practica facile e breve di molte sorti di horo- 

 logii solari. 4 Viterbo, 1640. 



GRISCHOW (A. N.). Sermo de parallaxi coelestium corporum, sive de 

 via ad distantias et magnitudines eorum definiendas [to which is added] ; 

 Ad Grischovii sermonem de distantiis et magnitudinibus corporum 

 coalestium, responsio J. A. Braunii. 4 Petropoli, 1755. 



GROTTO (LuiGi). See Bonardo (G.M.). Lagrandezza, larghezza e di- 

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GRUBER (JOANNES SIGISMUNDUS). See Censorinus. De die natali, &c. 

 12 1810. 



GRYN^EUS (SIMON). Commentarii duo, de ignitis meteoris unus: alter 

 de cometarum causis atque signification ibus ; accessit ejusdem obser- 

 vatio cometa?. qui anno superiore 77, et ab initio 78 fulsit, et disputatio 

 de inusitata magnitudine et figura Veneris conspecta in fine anni 1578 

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 (M.) et Grynseus (S.). De cometis, &c. 4 1580. 



GUERICKE (OxTO de}. De virtutibus mundanis et systemate mundi 

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nova Magdeburgica. fol. 1672. (Chemistry.) 



GUIDUCCI (MARIO). Discorso delle comete. 4 Firenze, 1619. 

 GULIELMINUS (DOMINICUS). Observatio Solaris eclipsis anni 1684 



Bononiae habita die 12 Julii ejusdem anni. 4 BononifB, [1684.] 

 GUNTER (EDMUND). The works of; containing the description and use 

 of the quadrant. See Gunter (E.). The works, &c. 4 1680. (Ma- 

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. The description and use of His Majesties dials in White-hall garden. 



4 London, 1624. 



GUSMAN (FRANCISCUS). See Hell (M.). Ephemerides, an. 1776. 

 8 



H. 



HADLEY (JOHN). Biographical account of, and of his brothers, 

 G.and H. Hadley. [P. S. Rigaud.] 8 London, [1835.] 



Reprinted from the Nautical Magazine. 



HAGER (GIUSEPPE). Illustrazione d' uno zodiaco orientale del cabinetto 



delle medaglie di Sua Maesta a Parigi, scoperto recentemente presso le 



sponde del Tigri. fol. Milano, 1811. 

 HALIFAX (JOHN). See Sacro-Bosco (J. de). 

 HALL (BASIL). See Anonymous. Memoir on the navigation of South 



America. 8 1825. 

 HALLASCHKA (CASSIANO). Occultazioni di stelle. See Cesaris (A. 



de). Effemeridi, c.; an. 1822. 8 



