"How the Nautilus will navigate under the ice and why such means of under-ice travel is easier and safer than to attempt to travel through it by surface ships or over it by dog teams and sleds", undated

Mss-62, Box: 3, Folder: 6 (Mixed Materials)
"How the Nautilus will navigate under the ice and why such means of under-ice travel is easier and safer than to attempt to travel through it by surface ships or over it by dog teams and sleds", undated

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