Habitations affected by environment 473 Hogan, or hut, Navajo 473 Houses built near water, Pueblo 477 Lava inclosure earliest form of Navajo hut 475 Linguistic indications as to habitations 474 Linguistic indications as to primitive water vessels 482 Mindeleff, Victor, on development of rectangular architecture 475 Minerals influencing pottery 493 Mode of making pottery vessels 499-500 Moki pottery 493