524.--Latter inverted, as used in forming bowls 497 525.--Ancient bowl of corrugated ware, showing comparative shallowness 498 526.--Basket-bowl as base-mold for large vessels 499 527.--Clay nucleus illustrating beginning of a vessel 499 528.--The same shaped to form the base of a vessel 499 529.--The same as first placed in base-mold, showing beginning of spiral building 500 530.--First form of vessel 500 531.--Secondary form in mold, showing origin of spheroidal type of jar 501 532.--Scrapers or trowels of gourd and earthen-ware for smoothing pottery 501 533.--Finished form of a vessel in mold, showing amount of contraction in drying 501 534.--Profile of olla or modern water-jar 502 535.--Base of same, showing circular indentation at bottom 502 536.--Section of same, showing central concavity and circular depression 502 537.--"Milkmaid's boss," or annular mat of wicker for supporting round vessels on the head in carrying 503 538.--Use of annular mat illustrated 503 539.--Section of incipient vessel in convex-bottomed basket-mold 504 540.--Section of same as supported on annular mat and wad of soft substance, for drying 504 541.--Modern base-mold as made from the bottom of water jar 504 542.--Example of Pueblo painted-ornamentation illustrating decorative value of open spaces 506 543 and 544.--Amazonian basket-decorations, illustrating evolution of the above characteristic 507 545.--Bowl, showing open or unjoined space in lines near rim 510 546.--Water-jar, showing open or unjoined space in lines near rim 510 547.--Conical or flat-bellied canteen 512 548 and 549.--The same, compared with human mammary gland 513 550.--Double-lobed or hunter canteen (Me´ wi k‘i lik ton ne), showing teat-like projections and open spaces of contiguous lines 514 551.--Native painting of deer, showing space-line from mouth to heart 515 552.--Native painting of sea serpent, showing space-line from mouth to heart 515 553.--The fret of basket decoration 516