CONTENTS OF YOL. I 
PAGE 
Among the Volcanos and Glaciers of Auvergne. By the Rev. 
W. S. Symonds. Plate 1 1 
Agates and Agate-Working. By F. W. Rudler, F.G.S. Plate II. 23 
Condition of the Larger Planets. By R. A. Proctor, F.R.A.S. 38 
Nursing Echinoderms 51 
The Arctic Expedition. By E. G. Ravenstein, F.R.G.S 64 
Evidences of the Age of Ice. By Henry Woodward, F.R.S., 
F.G.S., &c. Plate IH 105 
Mineral Cavities and their Contents. By W. N. Hartley, 
F.R.S.E., King’s College, London ... ... ... 119 
Are the Desmids and Diatoms Simple Cells? By G. C. 
Wallich, M.D 130 
The Norwegian Lemming and its Migrations. By W. Duppa 
Crotch, M.A., F.L.S. Plate IV 143 
The Alkaline and Boracic Lakes of California. By J. Arthur 
Phillips, F.G.S 153 
Can Weather be Predicted in the British Isles? By R. H. 
Scott, F.R.S., F.G.S 165 
Studies amongst Amoeba. By Professor P. Martin Duncan, F.R.S. 
Plates V. and VI 217 
Mars in the Autumn of 1877. By R. A. Proctor, F.R.A.S. 
Plate VII 235 
The Volcanos of the Haute Loire and the Ardeche. By the 
Rev. W. S. Symonds. Plate VIII 250, 329 
Notes on the Geographical Distribution of Animals. By 
W. F. Kirby 261 
