Travel
- American Encyclopedia - Biography (163)
- Dogs and All About Them (162)
- The History of the Telephone (155)
- Putnam's Word Book (151)
- American Encyclopedia - History, II (151)
- American Encyclopedia - Travel (150)
- A History of Aeronautics (148)
- American Encyclopedia - History, I (146)
- The Story of Alchemy and the Beginnings of Chemistry (146)
- Aeroplanes and Dirigibles of War (142)
- George Gordon, Lord Byron (389)
- A (382)
- Hernando Cortez (370)
- Peter the Great (352)
- William Penn (349)
- Overland Journey to India (348)
- II. THE PROGRESS OF MODERN ASTRONOMY (330)
- Travels in Africa - Park Denham, Clapperton, Lander, and Others (322)
- Count Rumford (319)
- War with Russia - Alliance of England, France and Turkey (311)
- A History of Aeronautics (1,356)
- American Encyclopedia - Biography (1,326)
- American Encyclopedia - History, I (1,297)
- The History of the Telephone (1,237)
- American Encyclopedia - Travel (1,231)
- Aeroplanes and Dirigibles of War (1,228)
- American Encyclopedia - History, II (1,211)
- The Story of Alchemy and the Beginnings of Chemistry (1,206)
- Putnam's Word Book (1,193)
- Dogs and All About Them (1,191)
- Hernando Cortez (4,942)
- William Penn (4,208)
- Count Rumford (4,130)
- Peter the Great (4,051)
- John Howard (3,953)
- George Gordon, Lord Byron (3,909)
- War with Russia - Alliance of England, France and Turkey (3,897)
- Overland Journey to India (3,893)
- Travels in Africa - Park Denham, Clapperton, Lander, and Others (3,707)
- II. THE PROGRESS OF MODERN ASTRONOMY (3,494)