Shade Trees for the Harlem Speedway - p98

doi:10.1038/scientificamerican02131897-98

PDF (356 KB)

The Reclamation of the New Jersey Meadows - p98

doi:10.1038/scientificamerican02131897-98a

PDF (356 KB)

The Green Cross - p98

doi:10.1038/scientificamerican02131897-98b

PDF (356 KB)

The Nicaragua Canal - p99

doi:10.1038/scientificamerican02131897-99

PDF (115 KB)

A Rapid Transit Tunnel between New York and Brooklyn - p99

doi:10.1038/scientificamerican02131897-99a

PDF (115 KB)

Schemes for Checking Returned Newspapers - p99

doi:10.1038/scientificamerican02131897-99b

PDF (115 KB)

Our New Torpedo Boats - p99

doi:10.1038/scientificamerican02131897-99c

PDF (115 KB)

The Modern Version of Supply and Demand - p99

doi:10.1038/scientificamerican02131897-99d

PDF (115 KB)

A Handy Note Book Holder - p100

doi:10.1038/scientificamerican02131897-100

PDF (273 KB)

A Horseless Fire Engine - p100

doi:10.1038/scientificamerican02131897-100a

PDF (273 KB)

An Improved Friction Clutch System - pp100 - 101

doi:10.1038/scientificamerican02131897-100b

PDF (537 KB)

A Portable Electric Drilling Machine - pp101 - 102

doi:10.1038/scientificamerican02131897-101

PDF (470 KB)

The Harlem River Speedway, New York City - pp104 - 105

doi:10.1038/scientificamerican02131897-104

PDF (951 KB)

The Stability of the Battleship Indiana - pp105 - 106

doi:10.1038/scientificamerican02131897-105

PDF (658 KB)

The Sword Walker - p107

William B. Caulk

doi:10.1038/scientificamerican02131897-107

PDF (500 KB)

To Inventors - p109

doi:10.1038/scientificamerican02131897-109b

PDF (1,568 KB)