Books about Science -- Periodicals (sorted by popularity)
- Scientific American Supplement, No. 392, July 7, 1883 Various 42 downloads
- Scientific American Supplement, No. 385, May 19, 1883 Various 42 downloads
- The Popular Science Monthly, August, 1900 Various 42 downloads
- Scientific American Supplement, No. 460, October 25, 1884 Various 42 downloads
- Lippincott's Magazine, October 1885 Various 42 downloads
- Lippincott's Magazine of Popular Literature and Science, Volume 17, No. 097, January, 1876 Various 42 downloads
- Lippincott's Magazine of Popular Literature and Science, Vol. 20, August 1877 Various 42 downloads
- Scientific American Supplement, No. 415, December 15, 1883 Various 41 downloads
- Scientific American Supplement, No. 795, March 28, 1891 Various 41 downloads
- Lippincott's Magazine of Popular Literature and Science, Vol. 12, No. 32, November, 1873 Various 41 downloads
- Scientific American Supplement, No. 362, December 9, 1882 Various 41 downloads
- Scientific American Supplement, No. 531, March 6, 1886 Various 41 downloads
- Scientific American Supplement, No. 643, April 28, 1888 Various 41 downloads
- The Ohio naturalist, Vol. I, No. 6, April, 1901 Ohio State University. Biological Club 40 downloads
- Scientific American Supplement, No. 481, March 21, 1885 Various 39 downloads
- Scientific American Supplement, No. 286, June 25, 1881 Various 39 downloads
- Philosophical transactions, Vol. L. Part II. For the year 1758. Various and Royal Society 39 downloads
- Scientific American Supplement, No. 520, December 19, 1885 Various 39 downloads
- Appletons' Popular Science Monthly, August 1899 Various 39 downloads
- Scientific American Supplement, No. 601, July 9, 1887 Various 39 downloads
- Appletons' Popular Science Monthly, October 1899 Various 39 downloads
- Scientific American Supplement, No. 803, May 23, 1891 Various 39 downloads
- The Edinburgh New Philosophical Journal, Vol. XLIX Various 39 downloads
- Scientific American Supplement, No. 441, June 14, 1884. Various 38 downloads
- Appletons' Popular Science Monthly, September 1899 Various 38 downloads