(33) “Peabody Museum Report,” Vol. II, p.473. As this may include some of the wash from the mound, perhaps it would be better to give the real area of the base as over twelve acres. (34) That is, if we follow the plan. (35) “Prehistoric Races,” p. 107. (36) “Ancient Monuments,” p. 174. (37) Pickett’s “History of Alabama,” Vol. I., p. 301. (38) Carr’s “Mounds of the Mississippi Valley,” pp. 91, 92; note, 103. (39) “Ancient Monuments,” p. 117. Note.—For the statement made in this text we are under obligation to Prof. Thomas, of the Bureau of Ethnology, who, in answer to a letter of inquiry, kindly furnished the information. (40) _“Am. Antiquarian,”_ March, 1884, p. 99. (41) It may be that no mounds were built for signaling purposes alone. The work of erecting mounds was so great that it is quite likely they were always erected for some other purpose, and used only secondarily for signal purposes. Such is shown to be the case with many of the signal mounds in Ohio. Such is the opinion of Mr. MacLean, who has made extensive researches. (42) Force’s “Some Consideration of the Mound Builders,” p. 65. (43) Similar effigy mounds have been recently observed in Minnesota, but they have not yet been described. (Putnam.) (44) Peet’s _American Antiquarian,_ May, 1884, p. 184. (45) Peet’s _American Antiquarian,_ January, 1884. We are indebted to the writings of Mr. Peet in this periodical for the months of January, May, and July, 1884, for many interesting facts in reference to the effigy mounds. He has studied them more than any other person, and his conclusions are consequently of great value. (46) Peet’s “Emblematic Mounds and Totem System of the Indian Tribes.” (47) “Ancient Monuments,” p. 40. (48) _American Antiquarian,_ January, 1883. (49) Putnam, in “Proceedings of American Antiquarian Society,” 1884. (50) Peet’s “Emblematic Mounds and Totem System of the Indian Tribes.” (51) Abbott’s “Primitive Industry,” p. 383. (52) Peet’s “Military Architecture of the Emblematic Mound Builders.” (53) “Smithsonian Report,” 1877, p. 278, _et seq._ (54) “Ancient Monuments,” p. 97; _American Antiquarian,_ January, 1883, p. 77. (55) This information is communicated by Mr. L. N. Tower, a gentleman in the employ of C. “&” N. W. E. R., at Tracy, Minn., who, at the request of the writer visited this locality, made measurements, etc. (56) _American Antiquarian,_ November, 1884, p. 403.