Feb 15-1924, Friday. Slate area Started out south of [illegible] and after going 20 miles due south are in the Precal Crownitis where the Apache series, the Perm- ian and Carboniferous are well exposed. Over the Pinal schist with its granite and diorite comes the Apache series. First is the Scarnm conglomerate. This I did not see. It is very much like the Barnes conglomerate to be described later. The Scarnm is a variety in thickness from a few feet up to 30 to 40. At because it is a coarse conglomerate but with pieces of the Pinal schist and appears to be of local rocks. It appears to grade up into guanzites and into the Pioneer shale. I saw much of the Pioneer sandy shale. It is a "dark reddish-brown, often less arenaceous shale composed layers of fine calcic detritus with little or calcareous material." Where more sandy, it is distinctly but irregularly laminated.