Table of contents


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Departments

Correspondence

Correspondence p436

doi:10.1038/scientificamerican12111909-436


Books

New Books, Etc. p451

doi:10.1038/scientificamerican12111909-451


Recently Patented Inventions

Recently Patented Inventions p452

doi:10.1038/scientificamerican12111909-452


Index

Index of Inventions p452

doi:10.1038/scientificamerican12111909-452a


Patent Notes

Patents p453

doi:10.1038/scientificamerican12111909-453


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Articles

Agriculture the Basis of Prosperity p426

doi:10.1038/scientificamerican12111909-426


Sea Strength of Principal Naval Powers p426

doi:10.1038/scientificamerican12111909-426a


The Second Refrigeration Congress p426

doi:10.1038/scientificamerican12111909-426b


Engineering p427

doi:10.1038/scientificamerican12111909-427


Electrical p427

doi:10.1038/scientificamerican12111909-427a


Science p427

doi:10.1038/scientificamerican12111909-427b


The Reclamation of the Arid Lands of the West pp428 - 429

doi:10.1038/scientificamerican12111909-428


The Wonderful Iron Mines of Lake Superior—How the Ore is Mined and Carried in Bulk pp430 - 431

doi:10.1038/scientificamerican12111909-430


The Proposed Lakes-to-the-Gulf Deep Waterway pp433 - 436

doi:10.1038/scientificamerican12111909-433


Another Magic Square p436

doi:10.1038/scientificamerican12111909-436a


American Harvesting Machinery—The Birth and Growth of a Vast Industry pp437 - 440

doi:10.1038/scientificamerican12111909-437


Gary: The Largest and Most Modern Steel Works in Existence pp441 - 443

doi:10.1038/scientificamerican12111909-441


The Handling and Storage of our Huge Grain Crop pp444 - 445

doi:10.1038/scientificamerican12111909-444


Chicago and the Railroad System of the Middle West pp446 - 447

doi:10.1038/scientificamerican12111909-446


Iron That Will Not Rust p448

doi:10.1038/scientificamerican12111909-448


Chicago's Sixty Miles of Freight Subway p448

doi:10.1038/scientificamerican12111909-448a


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