Most Popular Books
- Catalogue of Stars Within one Degree of the North Pole and Optical Distortion of the Helsingfors Astro-photographic Telescope Deduced From Photographic Measures
- An Introduction to the Study of Variable Stars
- Catalogue Of Stars Within Two Degrees Of The North Pole Deduced From Photographic Measures Made At Vassar College Observatory, Issues 1-3...
- Catalogue of Stars Within Two Degrees of the North Pole Deduced from Photographic Measures Made at Vassar College Observatory
- Catalogue of Stars Within Two Degrees of the North Pole, Deduced from Photographic Measures Made at Vassar College Observatory
