[Panov, A]eksandr]. IlaUOBlj, A.ICi;- 



cau^px. BceMipiioe Tflroiiiiie ii 



ero IipUHIlHLl. [La gravitation uni- 

 verselle et ses causes]. N. -Novgorod, 

 1901, (VII4-109). 23 cm. [1050 

 C 0700]. 1441 



Parkhurst, Henry M. Photometric 

 Observations of Eros. Astr. J., Boston, 

 Mass., 21. 1901, (148-149). [5960]. 



1442 



Notes on Variable Stars, 



No. 34. Astr. J., Boston, Mass., 21, 

 1901, (75-77). [7600]. 1443 



Notes on Variable Stars, 



No. 35. Astr. J., Boston, Mass., 21, 

 19U1, (137-139). [7600]. 1444 



Notes on Variable Stars, 



No. 36. Astr. J., Boston, Mass., 22, 

 1901, (69-70), [7600]. 1445 



Parkhtirst, J. A. Notes on Variable 

 Stars. Chicago, 111., AstrojA. J. Univ. 

 Chic, 14, 1901, (169-178). [7600]. 



1446 



Determination of the 



Wedge Constant of a Stellar Photo- 

 meter. Chicago, lU., Astroph. J., Univ. 

 Chic, 13, 1901, (249-259, with pi.). 

 [2400]. 1447 



Observations of Nova 



Persei at Yerkes Observatory. Pop. 

 Astr., Northfield, Minn., 9, 1901, (218- 

 219). [7600]. 1448 



Parr, W. Alfred. Annular eclipse 

 of the sun, 1901 November 11. London, 

 J. Brit. Astr. Ass., 12, 1902, (136-137). 

 [4210]. 1440 



Parsons, Laurence v. Rosse, Earl of. 



Parville, Hem-i de. Excursion imi- 

 versitaire de Paris au Mont Moimier. 1. 

 Observatoire de Nice. II. Le Mont 

 Mounier. Nature, Paris, 29, 1901, (2« 

 semest). (151-154, 167-170, av. fig.). 

 [2010]. 1450 



Pauly, W. Ephemeride des Planeten 

 (446) [1899 ER]. Fortsetzung. Astr. 

 Naclir., Kiel, 154, 1901, (295-296). 

 [5900]. 1451 



Payne, W[il]iam] .W[allace]. The 

 Astronomy of the NebulDe. Pop. Astr., 

 Northfield, Minn., 9, 1901, (490-496). 

 [0010 7800]. 1452 



The Leonids for 1901. 



Pop. Astr., Northfield, Minn., 9, 1901, 

 (559-563). [6650]. 1453 



Attraction and figure of 



the Earth. II. and III. Pop.' Astr., 



Northfield, Minn., 9, 1901, (7-13, 117- 

 123). [1610]. 1454 



Pechiile, C. F. Tyge Brahes ny 

 Stjerne i Forbindelse med bans Refor- 

 mation af Astronomien. [The new Star 

 of Tycho Brahe in its Relation to his 

 Reformation of Astronomy]. Kjoben- 

 havn, 1901, (p. 19-27 of the Report of 

 the Sitting of the Royal Danish Society 

 of Science in Commemoration of Tycho 

 Brahe on the three hundredth Anniver- 

 sary of his Death, October 24, 1901). 

 23-5 cm. [0010]. 1455 



V. Tycho Brahe. 



Peck, Henry A[llen]. Definitive orbit 

 of comet 1894 II. Astr. J., Boston, 

 Mass., 21, 1901, (121-134). [1130 

 6600]. 1456 



Definitive orbit of comet 



1896 IV. Astr. J., Boston, Mass., 22, 

 1901,(35-27). [1130 6600]. 1457 



Pedler, A. v. Lockyer, [Joseph] 

 Norman. 



Peek, C[uthbert] E. Report of the 

 Rousdon Observatory for the year 1900. 

 Loudon, Mon. Not. R. Astr. Soc, 61, 

 1901, (232). [2010]. 1458 



Observations of long 



period variable stars during the year 



1900. London, J. Brit. Astr. Ass., 11, 



1901, (189-194). [7600]. 1459 



Variable star observa- 

 tions December 1900. Engl. Mech., 

 London, 72, 1901, (490). [7600]. 1460 



■ Variable star observations 



Januai-v 1901. Engl. Mech., London, 

 72,1901,(574). [7600]. 1461 



Variable star observa- 

 tions February 1901. Engl. Mech., 

 Loudon, 73, 1901, (77). [7600]. 1462 



Variable star observa- 

 tions March 1901. Engl. Mech., 

 Loudon, 73, 1901, (185). [7600]. 1463 



Variable star observa- 

 tions April 1901. Engl. Mech.. 

 London, 73, 1901, (270). [7600]. 1464 



Variable star observations, 



May 1901. Engl. Mech., London, 73, 

 1901, (356). [7600]. 1465 



A'ariable star observa- 

 tions June 1901. Encjl. .Mech., 

 London, 73, 1901, (473). [7600]. 1466 



Variable star observa- 

 tions July 1901. Encl. Mech., 

 London, 73,' 1901, (564). [76a)J. 1467 



