ASTRONOMY. 155 



HENNERT (JOHANNES FRIDERICUS). Elementa universae astronomies. 

 See Hennert (J. F.). Cursus matheseos. 8 1768, &c. (Mathematics.) 



HENNERT (JOHANNES FRIDERICUS) et FRISIUS (P.). Dissertation es 

 de uniformitate motus diurni Terras. 4 Petropoli. \_No date.'] 



HENNET (ALBERT-JOSEPH-ULPIEN). See Anonymous. Globe (le) ce- 

 leste. 8 1820. 



HENRY (J.-M.). Memoire sur la marine des anciens. 8 Paris, 1817. 

 ( Three copies.) 



HERIGONE (PIERRE). Theorica planetarum. See Herigone (P.). 

 Cursus mathematicus, &c. 8 1634, &c. (Mathematics.) 



HERMES Trismegistus. Centiloquium de stellis beibenijs. See Ptolo- 

 maeus (C.). Liber quadripartiti, &c. fol. 1493. 



. Centiloquium. See Albubather Alchasili. (Liber nativitatum), &c. 



fol. 1501. 



. Centum aphorismi. See Firmicus (J. M.). Ad Mavortium Lollia- 



num, &c. fol. 1551. 



HERSCHEL (CAROLINA). Catalogue of stars taken from Flamsteed's 

 observations contained in the 2nd vol. of his Historia Ccelestis, and not 

 inserted in the British catalogue ; to which is added a collection of 

 errata that should be noticed in the same volume, with remarks by W. 

 Herschel. fol. London, 1798. (Two copies.) 



HERSCHEL (Sir JOHN FREDERICK WILLIAM). A list of test objects, 

 principally double stars, arranged in classes, for the trial of telescopes in 

 various respects, as to light, distinctness, &c. ; (from the Memoirs of the 

 Astronomical Society, vol. vm.) 4 London, 1834. 



. A treatise on astronomy. 12 London, 1833. 



. Account of observations made with a twenty-feet reflecting tele- 

 scope; comprehending descriptions of 321 new double and triple stars; 

 observations on the 2nd comet of 1825; an account of the state 

 of the great nebula in Orion ; observations of the nebula in the girdle 

 of Andromeda ; (from the Memoirs of the Astronomical Society?) 4 

 London, 1826. 



Third series of observations with a twenty-feet reflector, containing 



a catalogue of 384 new double stars, together with some observations 

 of double stars previously known ; (from the Memoirs of the Astrono- 

 mical Society, vol. in.) 4 London, 1828. 



. Fifth series of observations with a twenty-five feet reflector ; con- 

 taining the places, descriptions and measures of 2007 double stars, (re- 

 duced to the beginning of 1830,) of which 1304 have not been pre- 

 viously described ; (from the Memoirs of the Astronomical Society, vol. 

 vi.) 4 London, 1833. 



. Micrometrical measures of 364 double stars with a seven-feet equa- 

 torial achromatic telescope ; (from the Memoirs of the Astronomical 

 Society, vol. v, pt. i.) 4 London, 1832. 



. On the investigation of the orbits of revolving double stars : being a 



supplement to a paper entitled ' Micrometrical measures of 364 double 

 stars ;' (from the Memoirs of the Astronomical Society.) 4 London, 1 832. 



A second series of micrometrical measures of double stars, chiefly 



performed with the seven-feet equatorial at Slough, in the years 1831- 

 1833; (from the Memoirs of the Astronomical Society, vol. vm.) 4 

 London, 1834. 



. Notices of the elliptic orbits of Bootis and r) Coronae, with a se- 

 cond approximation to the orbit of y Virginis ; (from the Memoirs of the 

 Astronomical Society, vol. vi.) 4 London, 1833. 



