<  Back to Archive
SA Supplements Vol 19 Issue 490supp

SA Supplements

Volume 19, Issue 490supp

You are currently logged out. Please sign in to download the issue PDF.

Features

The Tilbury Deep Water Docks

Steel Boiler Plates

W. Parker

Aerial Navigation

Construction of the Wharf Walls of the New Floating Dock at Havre

Light Draught Fast Screw Launch

Olivier's Mathematical Reel

The Philosophy of Twist

Improvement in Looms

Instrument for Drawing Ellipses and Hyperbolas

Frederic R. Honey

The Telephonic Transmission of Speech by Discontinuous Electric Currents

L. De Locht-Labye

The Street and Maquaire Lamp

Apparatus to Determine Equivalents

H. N. Morse, E. H. Keiser

Conversion of Liquid Fat Acids into Solid Products

Aluminum and its Extraction on a Commercial Basis

F. J. Seymour

The Clapp-Griffiths Steel Process

The Possible Suspension of Old Age

The Trochoided Plane

Lawrence Hargrave

Abstracts of Papers Read at the Meeting of the National Academy of Sciences, Washington, April 21-24

Departments

Patents - May 23, 1885