There are many difficulties in the way of instituting a comparison of this work with that of the primitive work of the Old World. These I shall not stop to present in this place. In the most general way, I may say that the ceramic art of the Middle Mississippi is apparently superior to that of the stone age in Europe, but little can be inferred in regard to relative grades of culture. In classic countries it is difficult to find its true equivalent. To reach a stage of art correspondingly low we shall have to go behind the heroic age--to pass down through more than the five prehistoric cities of the hill of Hissarlik and descend into the lowest archæologic substratum. Even this, unless it represent the first achievement of that grade of art upon the continent, would afford uncertain data for comparative study. A given grade of ceramic achievement runs so freely up and down the scale of culture that alone its evidence is of little value in determining culture status. Index Adams County, Ohio, Serpent earthwork in 402 Age of pottery in Mississippi Valley 371 Alabama, Pottery from 395, 396, 431, 434 Albany, Illinois, Pottery from 430 Ancient pottery of the Mississippi Valley, William H. Holmes 361-436 Animal forms in pottery 383-392 Arkansas, Pottery from 378-392, 394-398, 399-410, 413-426 Baraboo County, Wisconsin, Pottery from 430 Basket molds for pottery 372 Bottles or jars, Wide-mouthed 398-411 Burial grounds, Pottery in 434 mounds, Pottery in 370 Burning pottery 434-435 Ceramic art groups 369 Change of habitat modifies ideas 370 Cherokee pottery 371 Color in Mississippi Valley pottery 373, 374 Classification of form Mississippi Valley pottery 375 Compound vessels 412 Contact of people modifies ideas 370 Construction of pottery in Mississippi Valley 372 Contributions to the Archæology of Missouri 367, 414, 418, 422 Culture represented in pottery 430 Curved forms 375 Davenport, Iowa, Pottery from vicinity of 427, 428 Differences in pottery of different regions 427, 431 Dodge, C. A., collected pottery 431 Du Pratz describes pottery 371 Evers, Dr. Edward, Publication by 367, 414 Finish of Mississippi Valley pottery 373 Form in Mississippi Valley pottery 373 Franklin County, Alabama, Pottery in 434 Gulf Province in pottery 431 Habitat modifies ideas, Change of 370 Hall, Captain, Pottery obtained by 381, 429 Holmes, W. H.; Ancient pottery of the Mississippi Valley 361-436 Ideas modified by certain influences 370 Illinois, Pottery from 430 Iowa, Pottery from 427, 428, 429 Jars, Wide-mouthed bottles or 398-411 Jones, Dr. Joseph, Publication by 367 Kentucky, Pottery from 426 Little Rock, Ark., Collection of pottery at (_See_ Thibault). Pottery from mound near 415 Louisiana, Pottery from 399, 431