1923] 



Fig. 90. — A log in the .Nort) Jrure.-t. It l- buried and intact at one cud, 

 but has been broken into fragment.s wherever e.xpo.sed. 



■'^>!sfc;- 



.'■yil'-^-^-'ftS* ^\j£t 



L 



Fig. 91. — '"The Haystacks," near Adamana, Arizona. 



