In addition to the maps showing the depths of the 
lochs, the following maps are included in V^ol. III. : — 
Plate 1. Head-waters of the Forth — Orography and drainage areas. 
Plate II. „ „ „ — Surface geology. 
Plate III. „ —Mean annual rainfall. 
Plate XIV. Temperature Section of Loch Ericht. 
Plate XXXIV. Head-waters of the Tay — Surface geology. 
Plate XLII. Assynt District — Surface geology. 
Plate LI. Loch Maree District — Surface geology. 
