CONTENTS OF VOL. IV. 
Notes on the Argentine Republic. By Charles Oxland 
(Illustrated) 
Meteors and Meteor Systems. By W. F. Denning, F.R.A.S., F.M.S. 
(Illustrated) 
The Law of Association in the Animal Kingdom. By M. 
Edm. Perrier 
The Dinosauria. By Professor H. G. Seeley, F.R.S., F.G.S. 
(Illustrated) 
Chameleons. By Professor J. Reay Greene, B. A., M.D., F.L.S., &c. 
(Illustrated) 
The New Chemistry, a Development of the Old. By M. M. 
Pattison Muir, M.A., F.R.S.E. 
The Classification of the Tertiary Deposits. By Professor 
John W. Judd, F.R.S., Sec. G.S 
Artificial Diamonds. By F. W. Rudler, F.R.S 
The Threshold of Evolution. By Surgeon-Major Wallich, M.D. 
(Illustrated) 
Feather-Stars, Recent and Fossil. By P. Herbert Carpenter, 
M.A., Assistant Master at Eton College. (Illustrated)... 
The Portland Building Stone. By the Rev. J. F. Blake, M.A., 
F.G.S 
Climbing Plants. By Francis Darwin, F.L.S. (Illustrated) 
On the Influence which a Molecular Movement Due to 
Electricity may have Exerted in Certain Geological 
Phenomena, namely, the Metamorphism of Rocks and the For- 
mation of Metalliferous Deposits. By Manuel Fernandez de 
Castro ... 
Sunspots and British Weather. By W. L. Dallas, Meteorological 
Office 
The Hardening and Tempering of Steel... 
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