Table of contents


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Departments

Correspondence

Correspondence pp212 - 213

doi:10.1038/scientificamerican09301868-212


Business and Personal

Business and Personal p215

doi:10.1038/scientificamerican09301868-215b


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Articles

Improvement in Hand-power Sawing Machines pp209 - 210

doi:10.1038/scientificamerican09301868-209


The Origin of Petroleum p210

doi:10.1038/scientificamerican09301868-210


Electrical Novelties pp210 - 211

doi:10.1038/scientificamerican09301868-210a


The Influence of Scientific Conventions p211

doi:10.1038/scientificamerican09301868-211


Barr's Improvement in Centrifugal Machines pp213 - 214

doi:10.1038/scientificamerican09301868-213


Editorial Summary p214

doi:10.1038/scientificamerican09301868-214


Manufacturing, Mining, and Railroad Items pp214 - 215

doi:10.1038/scientificamerican09301868-214a


Recent American and Foreign Patents p215

doi:10.1038/scientificamerican09301868-215


Answers to Correspondents p215

doi:10.1038/scientificamerican09301868-215a


New Publications pp215 - 216

doi:10.1038/scientificamerican09301868-215c


Dynamite—Review of a Paper by M. Nobel, the Inventor p216

doi:10.1038/scientificamerican09301868-216


Uniform Standard for Bolts and Nuts-Its Adoption by the Navy Department pp216 - 217

doi:10.1038/scientificamerican09301868-216a


Things Easy and Difficult p217

doi:10.1038/scientificamerican09301868-217


Street Dust Laid by the Use of Chemicals p217

doi:10.1038/scientificamerican09301868-217a


The Earthquake Term p217

doi:10.1038/scientificamerican09301868-217b


Inquisitiveness-Our Correspondents pp217 - 218

doi:10.1038/scientificamerican09301868-217c


Coppered Iron Rollers for Calico Printing p218

doi:10.1038/scientificamerican09301868-218


The Quality of Illuminating Gas p218

doi:10.1038/scientificamerican09301868-218a


Official Examination of Applications for Patents p218

doi:10.1038/scientificamerican09301868-218b


Patent Office Matters p218

doi:10.1038/scientificamerican09301868-218c


The New Temple Emanuel p219

doi:10.1038/scientificamerican09301868-219


Ventilation p219

doi:10.1038/scientificamerican09301868-219a


Patents and Claims pp219 - 222

doi:10.1038/scientificamerican09301868-219b


Patents pp222 - 223

doi:10.1038/scientificamerican09301868-220


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