(May 29th.) : 5, Quartz; 6, Chalcedony; 7, Quartz; 8, Silky Shale (Silurian); 9, very Micaceous Schist (Silurian).
Latitude 25 degrees 40 minutes South, Longitude 120 degrees 35 minutes East : Found in the Frere Ranges.

: 10, Ferruginous rock (Tertiary); 11, portion of a seam or joint of a rock; 12, very fine soft purple slightly micaceous rock (Silurian); 13, white micaceous slaty sandstone (Silurian).
Latitude 25 degrees 39 minutes South, Longitude 120 degrees 40 minutes East : This rock was broken off the face of the side of a bank of brook.
It is rather soft, and would split; it is all in layers.

I cut my initials in it with a chisel.

: Purple brown slate (Silurian).
Latitude 25 degrees 40 minutes South, Longitude 122 degrees 20 minutes East, Mount Moore : Many ranges and some grassy country running from longitude 122 to longitude 124 degrees, generally composed of this description of rock.

: 15, Rough quartzite (conglomeritic) Tertiary; 16, rough quartzite with white band, brown and purple (Tertiary).
Latitude 25 degrees 32 minutes South, Longitude 124 degrees 17 minutes East : Taken from rough range rising out of gently undulating desert.
(July 5th.) : White flinty rock; consists in the main of Silica, with Magnesia and Alumina; it also contains water and traces of the Alkalies.
It is probably derived from the decomposition of granite.