A. General and Astronomic.

1. “On the Theory of Errors of Observation,” Report of the Superintendent of the U. S. Coast Survey for 1870, pp. 220-224.

2. “Note on the Theory of Economy of Research,” Report of the U. S. Coast Survey for 1876, pp. 197-201. (This paper deals with the relation between the utility and the cost of diminishing the probable error.)

3. “Apparatus for Recording a Mean of Observed Times,” U. S. Coast Survey, 1877. Appendix No. 15 to Report of 1875.

4. “Ferrero’s Metodo dei Minimi Quadrati,” American Journal of Mathematics, Vol. 1 (1878), pp. 55-63.

5. “Photometric Researches,” Annals of the Astronomical Observatory of Harvard College, Vol. 9 (1878), pp. 1-181.

6. “Methods and Results. Measurement of Gravity.” Washington. 1879.

7. “Methods and Results. A Catalogue of Stars for Observations of Latitude.” Washington. 1879.

8. “On the Ghosts in Rutherford’s ‘Diffraction Spectra,’” American Journal of Mathematics, Vol. 2 (1879), pp. 330-347.

9. “Note on a Comparison of a Wave-Length with a Meter,” American Journal of Science, Vol. 18 (1879), p. 51.