The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898

The National Geographic Magazine, an illustrated monthly, Vol X, April 1899. It includes the following articles: The Sources of the Saskatchewan, by Walter D. Wilcox Exploration in the Canadian Rockies How long a Whale may carry a Harpoon, by Wm H. Dall Shipbuilding in the United Kingdom in 1898