Volume 43, Issue 1099supp
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Features
Traffic on Asphalt
The Water Power of the Drainage and Ship Canal, and its Transmission to Chicago
The Tunnel under the Spree, near Treptow
Home-Made Graduated Measures
Selected Formulæ
Printing out Weak Spots in Negatives
Miscellaneous Notes
Engineering Notes
Electrical Notes
A Petroleum Irrigation Pump
Thirty Ton Steam Locomotive Crane
The De Dion & Bouton Gasoline Tricycle
The Toxic Effects of Tobacco
The Presence and Significance of Bacteria in Air, Water and Food, and their Relation to Health
Nashville, Tenn., Professor of General, Descriptive and Surgical Anatomy and Microscopy in the Medical Department of the University of Tennessee