At head of title, v. 1- : Carnegie Institution of Washington.
Issued as Contributions from the Mount Wilson Observatory (v. 1-3. Mount Wilson Solar Observatory) no. 111, 136, 158, 182, 204-205, 237, 270, 290, 321, 356-357, 391, 435, 468, 506-507, 553, 590, 630, 652-653.
Title varies: v. 1-6, 1916-22, The photographic determination of stellar parallaxes with the 60-inch reflector. v. 7- 1924- The photographic determination of stellar parallaxes with the 60- and 100-inch reflectors.
Vol. 19 included in his Investigations on proper motion, v. 23.
Vol. 1 includes his List of stars with proper motions exceeding 0".50 annually, addenda and errata; v. 5 and 18 include his Investigations on proper motion, v. 3 and 21, respectively; v. 10, his On the systematic errors in modern trigonometrically determined parallaxes and v. 14 his Trigonometric parallaxes determined with the 60- and 100-inch Mount Wilson reflectors.
Vols. 15- reprinted from the Astrophysical journal.