[ viii ] 
XII. Illustrations of the Viscous Theory of Glacier Motion. — Part I. Containing 
Experiments on the Flow of Plastic Bodies, and Observations on the Phenomena 
of Lava Streams. By James D. Forbes, Esq., F.R.S.S. L. and E., Corresponding 
Member of the Institute of France, and Professor of Natural Philosophy in the 
University of Edinburgh page 143 
XIII. Illustrations of the Viscous Theory of Glacier Motion. — Part II. An attempt to 
establish by observation the Plasticity of Glacier Ice. By James D. Forbes, 
Esq., F.R.S.S. L. and E., Corresponding Member of the Institute of France, and 
Professor of Natural Philosophy in the University of Edinburgh . . . 157 
XIV. Illustrations of the Viscous Theory of Glacier Motion. — Part III. On the Motion 
of Glaciers of the Second Order. On the Annual Motion of Glaciers, and on 
the Influence of Seasons. Summary of the Evidence adduced in favour of the 
Theory. By James D. Forbes, Esq., F.R.S.S. L. and E., Corresponding 
Member of the Institute of France, and Professor of Natural Philosophy in the 
University of Edinburgh 177 
XV. Supplement to a Paper “ On the Nervous Ganglia of the Uterus." By Robert 
Lee, M.D., F.R.S., Fellow of the Royal College of Physicians, London. . 211 
XVI. On the Nerves of the Uterus. By Thomas Snow Beck, Esq., Surgeon. Commu- 
nicated by Sir Bjenjamin C. Brodie, Bart., F.R.S 213 
