hayonias. 
To the north' of Hyko about ten miles, the section is cut 
Qit by a fault and a low ridge (Fossil Butte) formed of the Pogonip 
itaesho?H* capped by the Eureka quartzite, followed by the siliceous 
be da of the Silurian. 
In the P&hranagat Range next west of the Hyko Eange , the 
section is more complete than at the latter, and embraces a great 
thielESM® of siliceous beds most of which may be referred to the 
erven i&n above Ho.1 of the section 
Owing to the siliceous character of the beds no good fos¬ 
sils were obtained until No.9 of the section was reached. Here 
the fauna indicates the Upper portion of the Devonian. The sec¬ 
tion is continuous and unbroken up to Ho.12 in which there is a 
transition from a Devonian to the Lower Carboniferous fauna. This 
section is of special interest owing to the thickness of the lime¬ 
stone from the Silurian to the Carboniferous which is unmarked by 
bh8 presence of any sandstone or argillaceous shale, as in the 
fareka section. 
This section was measured by Look's level, spacing, and 
here practicable, cliffs were measured with the t&pe-iine^ 
