Table of contents


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Departments

Correspondence

Correspondence p213

doi:10.1038/scientificamerican04041885-213


Business and Personal

Business and Personal p218

doi:10.1038/scientificamerican04041885-218d


Notes and Queries

Notes and Queries p219

doi:10.1038/scientificamerican04041885-219


Index

Index of Inventions pp219 - 220

doi:10.1038/scientificamerican04041885-219a


Patent Notes

Patents p222

doi:10.1038/scientificamerican04041885-222


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Articles

The Forth Bridge pp207 - 208

doi:10.1038/scientificamerican04041885-207


Concerning Telescopes pp208 - 209

doi:10.1038/scientificamerican04041885-208


Progress of Pneumatic Postal Tubes p209

doi:10.1038/scientificamerican04041885-209


Apparatus for Testing Sealed Cans p210

doi:10.1038/scientificamerican04041885-210


Car Coupling p210

doi:10.1038/scientificamerican04041885-210a


Improved Seal Lock p210

doi:10.1038/scientificamerican04041885-210b


Improved Door Opener p210

doi:10.1038/scientificamerican04041885-210c


A Steam Wheel, or Rotary Engine p211

doi:10.1038/scientificamerican04041885-211


Safety Gas Burner p211

doi:10.1038/scientificamerican04041885-211a


Combined Grain Drier and Cooler pp211 - 212

doi:10.1038/scientificamerican04041885-211b


The Sinking of Shafts by Freezing p212

doi:10.1038/scientificamerican04041885-212


Automatic Loose Pulley Oiler p212

doi:10.1038/scientificamerican04041885-212a


Cover for Cooking Utensils pp212 - 213

doi:10.1038/scientificamerican04041885-212b


Imitation of Electro-Physiological Apparatus and Electric Tuning-Forks by Hydrodynamic Tuning-Forks p214

doi:10.1038/scientificamerican04041885-214


The Improved Hand Loom Eugenie p215

doi:10.1038/scientificamerican04041885-215


The Improved Hand Loom Penelope p215

doi:10.1038/scientificamerican04041885-215a


The Rudder of the Alaska p216

doi:10.1038/scientificamerican04041885-216


The Victoria Regia p217

doi:10.1038/scientificamerican04041885-217


Engineering Inventions p218

doi:10.1038/scientificamerican04041885-218


Agricultural Inventions p218

doi:10.1038/scientificamerican04041885-218a


Miscellaneous Inventions p218

doi:10.1038/scientificamerican04041885-218b


Special p218

doi:10.1038/scientificamerican04041885-218c


Foreign Patents p221

doi:10.1038/scientificamerican04041885-221


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