Scientific American Magazine
Volume 25, Issue 23You are currently logged out. Please sign in to download the issue PDF.
Features
Church of St. Peter's, Bournemouth England
Cornell University --A Student's Labor for Knowledge
New Publication--The Science Record, for 1872
Briesen's Writing Apparatus for The Blind Etc.
Improved Axle for Railway Cars and Locomotives
Units of Heat and of Force
Decay of Stone and Brick
Occasional Notes- December 2, 1871
Concrete Building
Progress of The Underground Railway System
An Exact Method of Determining The Evaporative Efficiency of Steamboilers
Too Much Gas; Not Enough Light
The Study of Science in Schools
Dr. Draper's Experiments with Brick and Stone
A Number of Extensions --Tedious Sewing Machine Case
Business and Personal- December 2, 1871
Scientific Intelligence- December 2, 1871
Prince Alexis--His Welcome to America
Answers to Correspondents- December 2, 1871
Recent American and Foreign Patents- December 2, 1871
Queries- December 2, 1871
Official List of Patents- December 2, 1871
Applications for Extension of Patents- December 2, 1871
Departments
Correspondence- December 2, 1871
New Books and Publications- December 2, 1871
