COMPARING GEOGRAPHICAL DISTANCES. 
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Delagoa Bay one unit; from the north of Madagascar to Zanzibar one 
unit, and the distance from Mauritius to the north of Madagascar one 
unit. The length of Madagascar is about a thousand miles, that is to 
say, very much the length of France and Spain together, and the 
Mosambique channel, as it is called, is, at its narrowest portion 250 
miles broad, very different from a channel as we understand it in 
England. From Victoria Falls to the south of Lake Tanganyika is 
750 miles. This gives an approximate idea of the dimensions of 
British Central Africa. To continue the coast measurements; from 
Beira and Sofala Bay to the north of Portuguese territory (Cape 
Delgado) is one unit; from Cape Delgado to the north coast line of 
British Uganda one unit; from this point as the crow flies, to Zeylah 
rather more than one unit; from Zeylah to the White Nile one unit. 
The length of the Nile, as the crow flies, comprises about three units : 
from Cairo to Dongola one unit and two units to the south of the 
Victoria Nyanza. German East Africa is also about one unit in 
length from north to south. 
To recapitulate the general measurements of Africa, you will see it 
comprises three units from the north of Tunis to the Cameroons; three 
and a half units more to Capetown, rather over two units from the 
Cameroons to the extreme west, three units along the Mediterranean 
on the north, two units along the Bed Sea, and four and a half units 
more on the east coast. The cross measurements are one unit on the 
Orange Biver, two units on the Zambesi and three units on the 
Equator. 
AMEBICA. 
From Mount Hecla in Iceland to Cape Farewell in Greenland is one 
unit. From Cape Farewell in Greenland to Besolution Island on the 
mouth of the Hudson Straits one unit; also from Cape Farewell to 
the Straits of Belle Isle on the coast of Labrador one unit. Hence the 
distance from the old world to the new may be remembered, roughly, 
as three units. You will remember that from Iceland to the Shetlands 
is one unit. The distance from London to New York by the ordinary 
trade route is about four units. The length of Labrador is one unit; 
from the Straits of Belle Isle to Quebec one unit. Montreal is about 
200 miles further up, from Montreal to Chicago one unit. From 
Chicago spring a number of important distances. From Chicago to 
the Gulf of Mexico, or rather more properly from the south of Lake 
Michigan to the Gulf of Mexico, is 750 miles; from Chicago to 
Charleston, from Chicago to New York, from Chicago to the south of 
Lake Winnipeg, from Lake Winnipeg to the rocky mountains, are all 
750 miles. The length of Hudson's Bay is one unit approximately, 
also the breadth of Alaska approximately. This may be remembered 
in connection with the distance of the Yukon Biver from the coast. 
In Mexico from the Bio Grande del Norte to the south-westernmost 
point of the coast is 750 miles, also from Cape Catoche across the 
Gulf of Mexico : the length of Cuba where the insurrection now is ; 
