18 books
Publications of the Washburn Observatory of the University of Wisconsin, 1885, Vol. 3 (Classic Reprint)
Publications of the Washburn Observatory of the University of Wisconsin, Vol. 3 (Classic Reprint)
Publications of the Washburn Observatory of the University of Wisconsin, Vol. 1 (Classic Reprint)
Publications of the Washburn Observatory of the University of Wisconsin, 1887, Vol. 5 (Classic Reprint)
Publications of the Washburn Observatory of the University of Wisconsin, 1887, Vol. 5 (Large Text Classic Reprint)
Publications of the Washburn Observatory, Vol. 6
Publications of the Washburn Observatory of the University of Wisconsin
Publications of the Washburn Observatory of the University of Wisconsin Volume 6, Nos. 3-4
Publications of the Washburn Observatory of the University of Wisconsin Volume 1
Publications Volume 13-14
Publications of the Washburn Observatory of the University of Wisconsin Volume 2
Publications of the Washburn Observatory of the University of Wisconsin Volume 9
Publications of the Washburn Observatory of the University of Wisconsin Volume 5
Publications of the Washburn Observatory of the University of Wisconsin Volume 6,
Publications of the Washburn Observatory of the University of Wisconsin, Volume 7...
Publications of the Washburn Observatory of the University of Wisconsin, Volume 12
Determinations of Proper Motion. 1902-1907
Publications of the Washburn Observatory of the University of Wisconsin, Volume III