Axt ivnomj/ in Gernifnit^, for 1818. 87 



XV. Notice of a Meteorological Work, 

 By Dr. Schoen of WUrzburg. 



XVI. Notice of a Map of the Kingdom of Hanover, 

 In twenty sheets, by Captain Mliller. 



ii. March and April. 



XVII. Posselt on finding the Time from the Anomaly in very 

 eccentric Orbits. 

 A solution resembling that which Bessel had before given of 

 the converse of the problem, derived from the motion in a para- 

 bola, with tables : it depends on a combination of two powerful 

 instruments, the Taylorian theorem, and the method of indeter- 

 minate coefficients. 



XVIII. WestphaVs Elements of Ceres. 



The author finds, from the calculation of 6 oppositions, com- 

 pared with Gauss's tables of perturbations, the following elements 

 for Jan. 0. 1818, Gottingen time. 



Mean longitude 326'* . 51' . 7" 



Mean tropical daily motion 770",7783 



Logarithm of the greater semiaxis. . ^ 0.4421029 



Perihehum 147° . 18' . 22' 



9. 80° . 45' . 19" 



Inchnation of the orbit 10° . 37' . 55" 



Eccentricity ( — sin. 4° . 28' . 57",9) 0.0781589 



XIX. Posselt's Table of the Place of Juno. 

 Up to July 1819, from Professor Nicolai's elements. 



XX. Encke's Calculation of Occultations. 



The most remarkable circumstance in this paper is the coin- 

 cidence of two observations made at Gottingen by Gauss and 

 Harding, the difference being, in each instance, only one tenth 

 of a second of time. The mean error of five corresponding ob- 

 servations at Gottingen and at Seebcrg was ^ of a second of 



