121 



Harvard Coll. Obs. Cir., Xo. 77, [1904], 

 (4). 29.8 cm. [7600]. 8100 



Pickering, Edward C[harles] . Variable 

 stars in the nebula of Orion. Cambridge, 

 Mass., Harvard CoU. Obs. Cii-., No. 78, 

 [1904], (6). 29.8cm. [7600 7800]. 8101 



Seventy-six new variable 



stars. Cambridge, Mass., Harvard Coll. 

 Obs. Cir., No. 79, [1904], (3). 29.8 cm. 

 [7600]. 8102 



Six new variable stars. Cam- 

 bridge, Mass., Harvard Coll. Obs. Cir., 

 No. 80, [1904], ([1]). 29.8cm. [7600]. 



8103 



Notes on variable stars of 



long period. Cambridge, Mass., Harvard 

 CoU. Obs. Cir., No. 81, [1904], ([4]). 

 29.8 cm. [7600]. 8104 



152 new variable stars in the 



large Magellanic cloud. Cambridge, Mass. , 

 Harvard CoU. Obs. Cir., No. 82, [1904], 

 (4). 29.8cm. Astr. Nachr., Kiel, 166, 

 1904, (69-74). [7600]. 8105 



Common's 60-inch telescope. 



Cambi-idge, Mass., Harvard CoU. Obs. 

 Cir., No. 83, [1904], ([2]). 29.8 cm. 

 Pop. Astr., Northfield, Minn., 12, 1904, 

 (660-662). [2030]. 8106 



Carnegie grant of 1903. 



[Report of researches.] Cambridge, Mass. , 

 Harvard CoU. Obs. Cir., No. 84, [1904], 

 (4). 29.8 cm. [0060]. 8107 



The anonymous gift of 1902. 



[Report of expenditure.] Cambridge, 

 Mass., Harvard CoU. Obs*. Cir., No. 85, 

 [1904], ([2]). 29.8cm. [0060]. 8108 



The nebula of Orion. Cam- 

 bridge, Mass., Harvard Coll. Obs. Cir., 

 No. 86, [1904], (3). 29.8cm.; Astr. 

 Nachr., Kiel, 166, 1904, (313-318). 

 [7800 7600]. 8109 



The ninth satellite of Saturn. 



Cambridge, Mass., Harvard Coll. Obs. 

 Cir., No. 87, [19041, ([1]); [reprint] 

 Astroph. J., Chicago, 111., 20, 1904, i'3.)7- 

 358) ; Pop. Astr., Northfield, Miiin.\ 12, 

 1904, (568). [6560]. 8110 



A new variable in Hercules. 



Cambridge, Mass., Harvard Coll. Obs. 

 Cir., No. 87, [1904], ([3]). [7600]. 



8111 



Asteroids. [Reprint, r. E. 3, 



No. 4698.] Pop. Astr., Northfield, Minn., 

 11, 1903, (153). [59011]. 8112 



Missing asteroids. [Reprint. 



V. E. 4, No. 6273.] Pop. Astr., North- 

 field, :Minu., 11, 1903, (181-182). [5900]. 



8113 



Pickering, Edward C[harles]. Nova 

 Gemiuorura before its discovery. [Reprint. 

 V. E. 4, No. 6274.] Pop. Astr., North- 

 field, Minn., 11, 1903, (261-26 1). [7600]. 

 8114 



The Algol variable 4. 1903. 



Pop. Astr., Northfield, Minn., 11, 1903, 

 (275). [7600]. 8115 



luteusitv of spectral lines. 



[Reprint r. E. 4, No. 6276.] Pop. Astr., 

 Northfield, Minn., 11, 1903, (384-387). 

 [4550 8000]. 8116 



Photographs of the region of 



BorreUy's comet c 1903. [Reprint] 

 Pop. Astr., Northfield, Minn., 11, 1903, 

 (393). [6600]. 8117 



Opposition of Eros (433) in 



1905. [Reprint, r. E. 4, No. 6277.] Pop. 

 Astr., Northfield, Minn., 11, 1903, (501- 

 504). [5910]. 8118 



Variable stars in the nebula 



of Orion. [Reprint, v. E. 4, No. 6260.] 

 Pop. Astr., Northfield, Minn., 12, 1904, 

 (332-338). [7600]. 8119 



New faint satellite belonging 



to Saturn. Pop. Astr., Northfield, Minn., 

 12, 1904, (499-500). [6560]. 8120 



The light of the stars. [An 



address at the International Congress of 

 Arts and Science, St. Loui<, September, 

 1904.] Pop. Sci. Mon., New York, N.Y., 

 66, 1904, (46-55). [0040 7000]. 8121 



. . . The astronomical 



photographs in the coUection of Harvard 

 University. Grant No. 20. [Preliminary 

 report.] Washington, D.C., Carnegie 

 Inst. Year Book, No 2, (1903), 1904, 

 (xxi-xxii). [7000]. 8122 



Veranderuugen auf dem Mond. 



Astr. Nachr., Kiel, 166, 1904, (91-92). 

 [4830]. 8123 



Saturnsmond Phoebe. Astr. 



Kiel, 166, 1904, (141-142). 



8124 



Nachr. 

 [6;60]. 



Note on Satui-u's satellite 



Phoebe. Astr. Nachr., Kiel, 166, 1904, 

 (159 160). [6560]. 8125 



Var. 159. 1904 Pegasi. 



Astr. Nachr., Kiel, 166, 1904, (207-208). 

 [7600]. 8126 



Planet (460) [1900 FN]. 



Astr. Nachr.. Kiel, 166, 1904, (207-208). 

 [.';900j. 8127 



A new variable 162. 1904 



Ilerculis. Astr. Nachr., Kiel, 186, 1904, 



(221-222). [7600]. 8128 



