Description of Plate XXXIV. 
1. a Garnet x 90 
h „ X 95 
c „ X 100 
d Enlargement of part of surface of a. 
2. a Zircon . . . . , . . . . . x 140 
h (showing zoning) . . . . . . x 115 
c (showing zoning and inclusions) . . x 125 
3. a Staurolite . . . . . . . . . . x 75 
h „ xl30 
c „ . . . . . . ... . X 85 
4. a Tourmaline . . . . . . . . . . x 135 
h „ . . . . . . . . . . X 65 
c „ X 90 
5. a Rutile x 110 
b „ x 75 
c „ x 80 
0 a Magnetite .. .. .. .. .. x 140 
h „ . . . . . . . . . . X 75 
c „ X 140 
