SA Supplements

July 1891

Volume 32, Issue 809supp

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Features

Shell Flowers

How Statues are Made

A Two-Bottle Marking Ink

R. Wright

The Sources and Applications of Borax

E. L. Fleming

On the Magnetization of Metals

Thomas T. P. Bruce Warren

The Telephone as an Optical Current Measurer

Max Wien

The New England Portelectric Company's System of Transportation

The Electric Tramway at Budapest

F. Uppenborn

An Enlarged Waterway Between the Great Lakes and the Atlantic Seaboard

E. L. Corthell

Edmund Becquerel

Riveted Joints in Boiler Shells

William Barnet Le van

Comparison of Water Supply Systems from a Financial Point of View

Iron Ore Deposits

R. W. Raymond

Recent Conceptions of Arcturus

Wm. H. Knight

New Remedies

Effects of Tuberculine on Monkeys

The General Features of the Vegetation of Louisiana and Adjoining Region, and its Products, in Relation to Pharmacy and Allied Industries

Chas Mohr

Fertilizer Analysis

Pyramidal Bellflower

The Purity of Benzene

C. Liebermann, A. Sergewetz

Manganese in Iron and Steel

L. Blum