Sketch showing the Form and Distribution of Quartz in a Foliated Rock.
FIGURE 7.

Sketch showing the Arrangement of Felspar and Quartz in a Metamorphic Series.
FIGURE 8.

Floral Diagram of an Orchid.
FIGURE 9.

Dissected Flower of Habenaria Chlorantha.
FIGURE 10.

Diagram of a Cruciferous Flower.
FIGURE 11.