Zone catalogue of 4484 stars situated between 0 deg 20' and 0 deg 40' north declination observed during the years 1854-55. Annals of Harvard College Observatory 2 (1857) 2-2257
Photographical Experiments on the Positions of Stars. Monthly Notices of the Royal Astronomical Society 17 (1857) 230.
Observations of Comets and Planets made at the Observatory of Harward College Cambridge U. S.Astronomische Nachrichten51 (1859) 273.
On the relative brightness of the sun and moon, 1861.
On the Spiral Structure of the Great Nebula of Orion. Monthly Notices of the Royal Astronomical Society 21 (1861) 203—207.
Observations upon the Great Nebula of Orion. Annals of the Harvard College Observatory 5 (1867) 1-22.