GENERAL SCIENCE. 



973 



Schumacher, Heinr. Christ. De Latitudine Specula Manhemiensis. 



4°. Havnise, 1816. 



Astronomische Hiilfstafeln fiir 1820-26. 



7 vols, in 1. 8°. Copenhagen. 

 The title of the vol. for 1820 is Hiilfstafeln zu Zeit- und Breitenbestimmungen. 



Tables auxiliaires astronomiques pour l'annee 1827 (& 1829). 



2 vols. 8°. Copenhague. 



Bound with foregoing. 



Ephemeris of the distances of the four planets, Venus, Mars, 



Jupiter, and Saturn, from the Moon's center for 1822, ('23, 

 '25 -27) ; to which are annected tables for finding the latitude by 

 the Polar-star for 1821 and 1822, ('23, '25-27). 



5 vols. 4°. ('22, '23), & 8°. Copenhagen, 1820-25. 



Schreiben an den Herrn Doctor W. Olbers, enthaltend eine 



Nachricht liber den Apparat, dessen er sich zur Messung der Basis 

 bei Braack im Jahre 1820 bedient hat. 4°. Altona, 1821. 



Journal of Observations made for ascertaining the Time of the 



place in the Observatory which was erected at Helgoland for that 

 purpose. 4°. [Altona], 1825. 



Tafeln zur Reduction der in der Histoire celeste enthaltenen 



Beobacbtungen. (Sammlung von Hiilfstafeln : Heft 2.) 



8°. Copenhagen, 1825. 



Viro excellentissimo O. Mailing solennia quinquagenalia cele- 



branti, felicitatem. Inest de Latitudine Specula Havniensis 

 brevis disquisitio. 4°. Altonse, 1827. 



Lettre a M. Louis Breguet sur une Pendule astronomique. . . . 



4°. Altona, 1829. 



Distances of the Sun and the four planets, Venus, Mars, 



Jupiter, and Saturn, from the Moon, calculated according to Mr. 

 Bessel's method, together with their places for every day in the 

 year 1835 ; to which is added an Ephemeris of the Moon calculated 

 for every third hour of mean Greenwich time upon Damoiseau's 

 tables, the culmination of the Moon for every day in 1835 for the 

 Altona meridian, with auxiliary quantities to reduce it to other 

 meridians, and Tables for finding the latitude by the Polestar for 

 1835. 8°. Copenhagen, 1834. 



« Distances of the Sun and the four planets, Venus, Mars, 



Jupiter, and Saturn, from the Moon, . . . with their places for 

 every day in the year 1836. 8°. Copenhagen, 1835. 



See also Journals : Schumacher. 



Schumann,/. Die Diatomeen der hohen Tatra. (Vienna, Zool.- 

 Botan. Gesellschaft, Monographs.) 8°. Wien, 1867. 



Schumann, P. G. P. De Gangliis : Dissert. Inaug. Chirurg.-Med. 



4°. Berolini, 1847, 



Schurtz, C. H. De Auditus Orthopterorum organis : Dissert. Inaug. 

 Zootom. 8°. Lipsias, [1859.] 



