34 



Prof. O. P. Bond. On the companion of Sirius. 



— Account of the Comct II, 1861, as scen at 



the Observalory of Harvard College. 



— Continuation of Accouut of Ihc Comet II, 18(11. 



— On the oulline of the head of the comet of 



Donati. 1858. 



— Moon Culminations. 1859. 



Fra Académie Imperiale des Sciences i Sf. Petershourg. 

 iMémoires, Tome IV, Nr. 1, 2, 3, 4, 5, 7, 8 t& 9. St. Peters- 

 hourg 1861— U2. 

 Bulletin, Tome IV, Nr. 3, 4, 5 & 6. 



Fra Société Imperiale des Naturalistes i Moscou. 

 Bulletin. Année 1861 Nr. 2, 3 & 4. Moscou 1861. 



