"2. : Fat quartz, in which a few partides of 

 red felspar are irhbedded. 



" 3. Quartz and felspar united in equal por- 

 tions, rather in fehort stripes than in grains, with 

 a few minute spangles of mica. The different 

 components being in very small quantities, con- 

 stitute a body which, at first sight, appears 1 ' ho- 

 mogenous. 



" 4. Quartz and felspar, in such minute grains 

 as to resemble a sand-stone. 



" 5. Red compact felspar ? In this I cannot, 

 even with a good lens, distinguish any admixture 

 of quartz; but when held in a particular ^direc- 

 tion, the silver mica is visible. I conjecture this 

 to be of the same nature as the preceding,' but 

 to be composed of much minuter parts. 



" 6. Red granite, or rather felspar and quartz, 

 forming a vein or stripe in spatous (granular) 

 hornblende ; which is likewise interspersed with 

 red particles of felspar. 



" 7. Two stripes of the preceding granitoid 

 mixture, separated by brownish mica. 



" 8. Stripes of the preceding granitoid mix- 

 ture imbedded in, and separated by, a greenish 

 mass, probably of the nature of hornblende. 



" 9. Red felspar, in irregular spots or blotches 

 of the size of a large pea, and in smaller parti- 

 cles, in greenish spatous hornblende. 



