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Descriptions of new species of North American Formicidae

Published in Proceedings of the Entomological Society of Philadelphia, in 1866, in volume 6, pages 152-172

Two new North American Cecidomyidae

Published in Proc. Ent. Soc. Philad, in 1866, in volume 6, pages 219-220

On the insects, coleopterous, hymenopterous and dipterous inhabiting the galls of certain species of willow. Part 2nd and last

Published in Proceedings of the Entomological Society of Philadelphia, in 1866, in volume 6, pages 223-288