Volume 91, Issue 20
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Features
Indian Summer
Turpentine Derivatives
Science Notes - November 12, 1904
Penetration of Mercury by Seed Radicels
Erecting the Columns for the Choir of the Cathedral of St. John the Divine
A Record in Ore Unloading
Electric Railway Locomotives for the New York Central
The Trial Trip of the Armored Cruiser "Colorado"
Notable St. Louis Airships
The Cliff Dwellers at the St. Louis Exposition
By The St. Louis Correspondent of the Scientific American
A Locomotive Duel Scientifically Conducted
Business and Personal Wants
Read This Column Carefully.-You will find inquiries for certain classes of articles numbered in consecutive order If you manufacture these goods write us at once and we will send you the name and address of the party desiring them formation. in every case it is necessary to give the number of the inquiry. Munn & Co.