Science and Technology 365

Agricultural Technology 365

Industrial Technology 367

The "American System": Rifles and Sewing

Machines 368 Steel Production 370 The United States and Britain: Rivals or

Partners? 371 Advances in Communication 371 Photography 374

Oceanography and Marine Technology 375 Balloon Flight and Other Exotic Transportation Technology 376

Better Living through Technology 376 Creating More Efficient Killing Machines 377 The U.S. Patent Office and Government Support for Science 378 The Pursuit of Pure Research 383 Popularizing Science 384

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