The amphibians of western North America; an account of the species known to inhabit California, Alaska, British Columbia, Washington, Oregon, Idaho, Utah, Nevada, Arizona, Sonora, and Lower California Q Science
Contributions to solar physics. I. A popular account of inquiries into the physical constitution of the sun, with special reference to recent spectroscopic researches; II. Communications to the Royal society of London, and the French Academy of sciences, with notes Q Science
A manual of spherical and practical astronomy, embracing the general problems of spherical astronomy, the special applications to nautical astronomy, and the theory and use of fixed and portable astronomical instruments, with an appendix on the method of least squares Q Science
