List of Plates R. Speight Facing Page Plates 1 and 2 8 C. A. Fleming Plates 3–7 32 L. B. Moore Plates 8 and 9 48 Edmund D. Gill Plate 10 64 J. T. Salmon Plate 11 69 H. Barraclough Fell Plate 12 84 B. M. Bary and R. O. Stuckey Plate 13 88 Edwin D. Hatch Plates 14–18 104 C. A. Fleming Plates 19, 20 130 Plate 24 246 Plate 25 254 Plates 26–30 266 E. S. Gourley Plates 21–23 182 A. C. Amies Plate 31 278 M. K. Finlayson Plates 32–35 286 B. M. Bary Plate 36 310 Plates 37–39 318