ord" of "Harper's Magazine," and for the "Annual" for many years. We subjoin a list of the most important of the scientific papers which he has published:
1. "The Forces of Nature"; a Lecture before the Chemical Society of Union College. (Albany, 1863.)
2. "Account of the Casting of a Gigantic Rodman Gun at Pittsburg" (American Journal of Science, II., xxxvii., 296, April, 1864).
3. "Report of a Trial for Poisoning by Strychnia" (American Journal of Medical Sciences, October, 1864).
4. "Formic versus Carbonous Acid" (American Journal of Science, II., xliv., 263, October, 1867).
5. "On Normal and Derived Acids" (American Journal of Science, II., xliv., 384, November, 1867).
6. "A Text-book of Elementary Chemistry, Theoretical and Inorganic" (New Haven, 1870).
7. "Notices of Papers in Physiological Chemistry" (American Journal of Science, II., xlvi., 233, 379; xlvii., 20, 258, 393; xlviii., 49).
8. "Abstract of the Second Series of Meissner's Researches on Electrized Oxygen" (American Journal of Science, II., 1., 213, September, 1870).
9. "On Molecular Classification" (American Chemist, i., 359, April, 1871).
10. "On the Rational Formulas of the Oxides of Chlorine and of Oxides analogously constituted" (American Chemist, ii., 1, July, 1871).
11. "Note on the Spectrum of the Aurora" (American Journal of Science, III., ii., 465, December, 1871).
12. "Correlation of Vital and Physical Forces"; a Lecture before the American Institute. (New York, 1871.)
13. "The Chemical Testimony in the Sherman Poisoning Case" (American Chemist, ii., 441, June, 1872).
14. "On the Spectrum of the Aurora of October 14, 1872" (American Journal of Science, III., v., 81, February, 1873).
15. "A New Vertical Lantern Galvanometer" (Proceedings of the American Philosophical Society, xiv., 440, May, 1875).
16. "The Molecule and the Atom"; an Address to the Chemical Subsection of the American Association for the Advancement of Science, at the Buffalo meeting (Proceedings of the American Association for the Advancement of Science, xxv., 85, August, 1876).
17. "Results of the Spectroscopic Observation of the Solar Eclipse of July 29, 1878"; a Report to the Director, Dr. Henry Draper (American Journal of Science, III., xvii., 121, February, 1879).
18. "On a New Method of measuring the Pitch of a Tuning-Fork" (Proceedings of the American Association for the Advancement of Science, xxvii., 118, August, 1878).
19. "On the Total Solar Eclipse of July 29, 1878" (Proceedings of the American Philosophical Society, xviii., 103, November, 1878).