The Harvard College Observatory : the first four directorships, 1839-1919 / by Bessie Zaban Jones and Lyle Gifford Boyd. Foreword by Donald H. Menzel.

xi, 495 p. :, 24 cm.

QB82 .U62 C4 1971 c.1

Harvard College Observatory -- History.

Cambridge,: Belknap Press of Harvard University Press, 1971.

Book