Relief shown by hachures and spot heights; depths shown by soundings. Insets: [North America showing Alaska's location in relation to the United States] -- Diagram of the Middle States. Text on verso: "Province of Canada, no. 1. Alaska, late...
Topp, Roger (photographer). Video, 36 seconds MPG format. The northern fur seal is an eared seal similar to the sea lion. They have a thick waterproof underfur with over 350,000 hairs per square inch. Their fur appears gray or brown when dry, and...
Topp, Roger (photographer). Video, 27 seconds MPG format. The northern fur seal is an eared seal similar to the sea lion. They have a thick waterproof underfur with over 350,000 hairs per square inch. Their fur appears gray or brown when dry, and...
Topp, Roger (photographer). Video, 30 seconds MPG format. The northern fur seal is an eared seal similar to the sea lion. They have a thick waterproof underfur with over 350,000 hairs per square inch. Their fur appears gray or brown when dry, and...