Polarity and Polycephalism, an essay on Individuality. (Am. 

 Jour, of ^Science, II. Vol. XLIX., 1870, pp. 69-75.) 



Note on the Infusoria Flagellata and the Spongiae Ciliatae. 

 (Am. Jour, of Science, III. Vol. I., 1871, pp. 113, 114; Ann. 

 Mag. Nat. Hist., IV. Vol. VII., 1871, pp. 247, 248.) 



The American Spongilla, a Craspedote, Flagellate Infusoriau. 

 (Am. Jour, of Science, III. Vol. II., 1871, pp. 426-486; Ann. 

 Mag. Nat. Hist., IV. Vol. IX., 1872, pp. 71-81 ; Monthly Microsc. 

 Jour., London, Vol. VII., 1872, pp. 104-114.) 



Report on the Veterinary Department, Mass. Agricultural Col- 

 lege.) Tenth Annual Report, Jan., 1873, pp. 26-29.) 



Lucernariae and their Allies. A memoir on the anatomy and 

 physiology of Haliclystus auricula, and other Lucernarians, with 

 a discussion of their relations to other Acalephae ; to Beroids, 

 and Polypi. (Smithsonian Contribtttions to Knowledge, 242, 1878, 

 pp. 130.) 



