An investigation in stellar photography - conducted at the Harvard college observatory with the a...

''Variable Stars of Short Period'' is a book written by Edward Charles Pickering and published in...

This book is a facsimile reprint and may contain imperfections such as marks, notations, marginal...

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may conta...

Observations of the Transit of Venus, December 5 and 6, 1882: Made at the Harvard College Observa...

This book is a facsimile reprint and may contain imperfections such as marks, notations, marginal...

Reprint of the original, first published in 1875.

Reprint of the original, first published in 1875.

Statement of Work Done at the Harvard College Observatory During the Years 1877-1882

Reprint of the original, first published in 1881.

Elements of Physical Manipulation

Elements of Physical Manipulation