The Publisher will mc.il this Journal to any Address in the United States, for one year, on receipt of 
Post Office Order for 11s. 
No. 15. Series. July 1880. [2s. 6d. 
THE POPULAR 
ricnrc iU'iu mu 
EDITED BY W. S. DALLAS, F.L.S. 
Assistant- Secretary of the Geological Society. 
CONTENTS. 
Feat her- 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. 
On the Influence which a Molecular Movement due to 
Electricity may have exerted in certain Geological Phenomena, namely, the 
Metamorphism of Rocks and the Formation of Metalliferous Deposits. 
By Manuel Fernandez de Castro. 
Sunspots and British Weather. 
By W. L. Dallas, of the Meteorological Office. 
The Hardening and Tempering of Steel. 
REVIEWS. 
Early Man in Britain — A Text-hook of Botany — Zoological Classification — 
The Mound-Builders — Electric Light — British Copepoda — The Geological 
Record — New Zealand Zoology — Ponds and Ditches — British Mosses — Spring 
— Geology of the London District. 
SCIENTIFIC SUMMARY. 
Astronomy — Botany — Chemistry — Geology and Palaeontology — Mineralogy — 
Physics— Zoology. 
ILLUSTRATED. 
LONDON: 
DAVID BOGUE, 
3 ST. MARTIN’S PLACE, TRAFALGAR SQUARE. 
LONDON : PRINTED BY STRANGEWAYS AND SONS, TOWER STREET, UPPER ST. MARTIN’S LANE. 
j— — — ■ '■ — 
I e First Series, edited by Dr. H. Lawson, may be had complete in numbers, price 
£7 12s. 6d. ; or, 15 Volumes, in cloth, £9 2s.; in half-morocco, £11 8s. 
