Volume 45, Issue 1173supp
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Features
The Queen Regent and Alfonzo XIII
Tombs of the First Egyptian Dynasty
Rose Psyche
Sleep and the Theories of its Cause
The Reclaiming of old Rubber
Amateur Chronophotographic Apparatus
Electrical Notes
Selected Formulæ
Engineering Notes
Wild and Domestic Sheep in the Berlin Zoological Garden
The Development of the Central Station
The American “Regular”
By the English Correspondent of the London Times on Board the United States Transport “Gussie”