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(The Copyright of Articles in this Fournal is Reserved.| 
CONTENTS .OF- No... XEL. 
On THE FLINT AND CHERT IMPLEMENTS FOUND IN 
KENT’s CAVERN, NEAR Torquay, DEVONSHIRE. By 
W. Pengelly, F.R.S., &c. 
On RECENT EXTRAORDINARY OSCILLATIONS OF THE 
WATERS IN LAKE ONTARIO AND ON THE SEA-SHORES 
oF PERU, AUSTRALIA, DEVONSHIRE, CORNWALL, &c. 
By Richard Edmonds . - = : : : : 
THE Native Copper MINES oF Lake Superior. By 
James Douglas ¢ ; : ; - . : ° 
On THE MODERN HypoTHEsEs oF AToMIc MATTER AND 
LuMINIFEROUS ETHER. By Henry Deacon. 
EXHIBITION IN MANCHESTER OF APPLIANCES FOR THE 
PRODUCTION AND ECONOMICAL USE OF FUEL 
AN INVESTIGATION OF THE NUMBER OF CONSTITUENTS, 
ELEMENTS, AND MINoRS oF A DETERMINANT. By 
Captain Allan Cunningham, R.E., Honorary Fellow of 
King’s College, London. : : . 3 : 
NOTICES OF SCIENTIFIC WORKS. 
St. Clair’s ** Darwinism and Design; or Creation by Evolution ” 
Stewart’s ‘‘ The Conservation of Energy” . : : - 5 
Ribot’s “* Contemporary English Psychology ” : 
Pettigrew’s ‘Animal Locomotion; or Walking, Swimming, and 
Flying” . - 
Smith’s ‘ Fruits and Petiaaees the Proper faaed of Man 7 
Geikie’s ‘ Geology ” : : : : wae ; - 
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