The SciencesJames Dwight DanaBy Marcus Benjamin on May 21, 1887AdvertisementABOUT THE AUTHOR(S)Recent Articles by Marcus BenjaminCharles Doolittle Walcott, Physiological Effects of High TemperaturesJames Playfair McMurrick, Temperatures in the United States and moreEliakim Hastings Moore, Zirconium, the "Mystery Metal"