Schwartz, Stammtafel des preussischen Konigshauses (Breslau 1898); Hohenzollernsche Forschungen, Jahrbuch fir die Geschichte der Hohenzollern, edited by C. Meyer (Berlin, 1891-1902); Hohenzollern Jahrbuch, Forschungen and Abbildungen zur Geschichte der Hohenzollern in Brandenburg-Preussen, edited by Seidel (Leipzig, 18 971903), and T.
Abhandl., 1891, 17, p. 519), who also published a posthumous paper of Seidel containing a short view of his work (Munchen.
Von Rohr, Die Bilderzeugung in optischen Instrumenten, pp. 3 1 7-3 2 3) have represented Kerber's method, and have deduced the Seidel formulae from geometrical considerations based on the Abbe method, and have interpreted the analytical results geometrically (pp. 212-316).
1), who thus discovered the aberrations of the 5th order (of which there are nine), and possibly the shortest proof of the practical (Seidel) formulae.
Seidel and Stern.
- :"to.o 7() ..i !;.if.)o.en, A There is a complete edition of the fragments of Eratosthenes by Bernhardy (1822); poetical fragments, Hillier (1872); geographical, Seidel (1799) and Berger 0880; «arao-Tepic ot, Schaubach (1795) and Robert (1878).