the area from 20 deg. to 30 deg. south latitude and 56
deg. to 66 deg. west longitude, defining the boundaries of each of the
seven linguistic stocks which occupied it, to wit, the Ennima, Guaycuru,
Lule, Mataco, Quechua, Samucu and Tupi, with discussions of some uncertain
dialects, as the Calchaqui, Lengua, Querandi, Charua, Payagua.

In (70) recent vocabularies of the Andoa and Cataquina tongues are
examined and their linguistic relations discussed.

Many of the above articles, written previous to 1890, were collected by
me in that year and published in a volume entitled "Essays of an
Americanist" (pp. 489. Philadelphia). For the convenience of those who
may wish to refer to them I add here a complete list of the essays which
it contains.

PART I.--ETHNOLOGIC AND ARCHAEOLOGIC.--A Review of the Data for the
Study of the Prehistoric Chronology of America. On Palaeoliths,
American and others. On the alleged Mongolian Affinities of the
American Race. The Probable Nationality of the Mound-Builders of
the Ohio Valley. The Toltecs of Mexico and their Fabulous Empire.

PART II.--MYTHOLOGY AND FOLK-LORE.--The Sacred Names in the
Mythology of the Quiches of Guatemala. The Hero-God of the
Algonkins as a Cheat and Liar. The Journey of the Soul in Egyptian,
Aryan and American Mythology. The Sacred Symbols of the Cross, the
Svastika and the Triqetrum in America. The Modern Folk-lore of the
Natives of Yucatan. The Folk-lore of the Modern Lenape Indians.

PART III.--GRAPHIC SYSTEMS AND LITERATURE.--The Phonetic Elements
in the Hieroglyphs of the Mayas and Mexicans. The Ikonomatic Method
of Phonetic Writing used by the Ancient Mexicans. The Writings and
Records of the Ancient Mayas of Yucatan. The Books of Chilan
Balam, the Sacred Volume of the Modern Mayas. Translation of the
Inscription on "The Stone of The Giants" at Orizaba, Mexico. The
Poetry of the American Indians, with Numerous Examples.

PART IV.--LINGUISTIC.--American Aboriginal Languages, and why we
should study them. Wilhelm von Humboldt's Researches in American
Languages. Some Characteristics of American Languages. The Earliest
Form of Human Speech, as Revealed by American Languages. The
Conception of Love, as expressed in some American Languages. The
Lineal Measures of the Semi-Civilized Nations of Mexico and Central
America. The Curious Hoax