BIBLIOGRAPHY. 103: 
Letpy, J. 
1874. Notice of some Rhizopoda. Proc. Acad. Philad. 
1874, pp. 155-157. 
1874. Notices of Rhizopods. Proc. Acad. Philud. 1874, pp.. 
16-168. 
1875. Notices of Rhizopods. Proc. Acad. Philad. 1874, pp. 
225-227. , 
1875. On a curious Rhizopod. Proc. Acad. Philad. 1875, 
pp. 124-125. 
1875. On Ourameeba. Proc. Acad. Philad. 1875, pp. 126- 
127, 2 figs. 
1875. Remarks on Rhizopods. Proc. Acad. Philad. 1875, 
pp. 413-415. | 
1876. Remarks on Arcella, etc. Proc. Acad. Philad. 1876,. 
pp. 54-58. 
1876. Remarks on the rhizopod genus Nebela. Proc. Acad. 
Philad. 1876, pp. 115-119, 18 figs. 
1876. Observations on Rhizopods. Proc. Acad. Philad.. 
1876, pp. 197-199, 1 fig. 
1877. Ameeba proteus. Amer. Natur. XII, pp. 235-238. 
1877. The birth of a Rhizopod. Proc. Acad. Philad. 1877, 
pp. 261-265. : 
1877. On the feeding of Dinameba. Proc. Acad. Philad.. 
1877, pp. 288-290. 
1877. Remarks upon Rhizopods, and notice of 4 new form. 
Proc. Acad. Philad. 1877, pp. 293-294. . 
1878. Remarks upon the American species of Diffllugia.. 
Proc. Acad. Philad. 1877, pp. 306-308. 
1878. Rhizopods in an apple-tree. Proc. Acad. Philad. 
1877, p. 321. 
1878. On Ameba. Proc. Acad. Philad. 1878, p. 99. 
1878. On the relation of Ameeba quadrilineata and Ameba 
verrucosa. Proc. Acad. Philad. 1878, p. 158. 
1878. Species of Huglypha, Trinema, Pamphagus, and 
Cyphoderia. Proc. Acad. Philad. 1878, pp. 171-173. 
1879. On Rhizopods occurring in Sphagnum. Proc. Acad. 
Philad. 1879, pp. 162-163. 
1879. Fresh-water Rhizopods of North America. (Report. 
of the United States Geological Survey of the Territories, 
Vol. XII.) xi + 324 pp., 48 pls. 4°. Washington. 
1880. Rhizopods in the mosses on the summit of Roan 
Mountain, North Carolina. Proc. Acad. Philad. 1880, pp. 
333-340. 
1881. Rhizopods as food for young fishes. Proc. Acad.. 
Philad. 1881, pp. 9-10. 
