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13 SMITHSONIAN INSTITUTION

Washington, D. C., ..... 191 by firing successive charges of smokeless powder in a special steel apparatus, who recoil carries it up and up till the charges are all fired. The apparatus is to be protected in descent by a small parachute.

I consider the method probably sound. Indeed I discussed it with Mr. Hale on Mount Wilson about 5 years ago.

Goddard's devices are protected by several patents.

He says the naval board