415 



lü^)r^eu burci? 3ol)auu ^obia^ ?0?a»)er in Comment. Soc. 

 Reg. Gotting. 180i — i808 Vol. XVI. p. 31—68. 



^' (@. 153.) Philos. Transact. lor 1803 p. 225. Olrago 

 im Annuaire 1842 p. 375. 2ßill man ftc^ bie ettva^ früher im 

 Zexte bejeic^nete (Entfernung ber ^irjlerne bequemer verftnnlic^en, 

 fo erinnere man fid), bap, wenn bie (5rbe »on ber (Sonne in einem 

 ^uf (Entfernung angenommen anrb, Uranus 19 ^u^ unb SBega 

 ber 2eier 34 Va geograp()ifd)e g)?eilen tjon ber @onne entfernt iiT. 



'' (@. 154.) «ßeffel in (Sc^um. 3ar)rbud)e 1839 ©. 53. 



'M@. 154.) 9??äbler, 2i|Tr. @. 476« S)erfelbe in @cl)um. 

 3al)rb. 1839 @. 95. 



" (@. 156.) @ir SBitliam .^erfd^el in ben Philos. 

 Iransact. for 1817 P. II, p. 328. 



«° (@. 156.) QTrago im Annuaire 1842 p. 459. 



^' (@. 157.) @ir 3«>l)n .^erfrfjel in einem ^Briefe au^ 

 §elbl)ui;fen \)om 13 ^anmx 1836. 9(id)oU, Archit. of the 

 Heavens 1838 p. 22. (@. auc^ einjelne Qfnbeutungen von @ir 

 SSitliam .^erfc^el über ben flernleeren Oiaum, ber m\6 in 

 großem 5tb|lanbe oon ber g}iild)(trafe trennt, in t>en Philos. 

 Transact. for 1817 P. II. p. 328.) 



" ((5. 157.) @ir 3oI)n .^erfdjel, Astron. §. 624. 3)err 

 felbe in Observa tions of Nebulae and Cl usters of Stars 

 (Transact. 1833 P. II. p. 479 fig. 25.): »we have here a brother 

 System bearing a real physical resemblance and strong analogy 

 of structure of our own. « 



*' (©. 157.) @ir SBilliam yperfcfjel in ben Transact. 

 for 1785 P. T. p. 257. ©ir 3ol)n .^erfcijel, Astr. 5. 616. 

 (»The nebulous region of the heavens forms a nebulous 

 milky way, composed of distinct nebulae as the other of Stars.« 

 2)erfelbe in einem 93riefe an mic^ üom OJiärj 1829.) 



«* (@. 158.) 3ol}n .^erfc^et, Astron. 5. 585. 



*= (@. 158.) 9(rago im Annuaire 1842 p. 282 — 285, 

 409-411 unb 439 — 442. 



^^ (@. 158.) Ölberö über tiie :Durc^ftd?ttgfeit be^ 2Beltraumi5 

 in Söobe^^ 3al)rbuc^ 1826 @. 110—121. 



*" (@. 159.) »An openingin the heavens«, 255illiam 

 J?erfd)el in ben Transact. for 1785 Vol. LXXV. P. I. p. 256. 



