is situated? We know that south latitude must be in the lower room, and that 36 being more than 30, must be on the 4th ladder step. For the longitude, as in the foregoing example, we cut off the unit 32,4—324 is more than 320, therefore it must be on the 33rd ladder; these two figures are now added together; the product 6 gives the situation on the wall, and by counting from 3 to 6—3, 4, 5, 6, we get 4, which is the number of the wall. This event, therefore, took place near the mouth of the Rio de la Plata; on the 4th wall, 6th ladder, and 4th step, of the southern room.
Sect. 2.—General Geography.
We are now provided with a geographical net, with which all the different places may be taken, from the smallest to the largest. What we have learned in the common way on globes is soon forgotten, there being no connecting media to bring the different countries to our recollection. Supposing we are looking at a globe, and we fix our eyes upon England, we cannot see its antipodes; places can be seen only in one direction. The Chinese, when shown a map of the world, said, why put us up in a corner? we are in the centre. In fact, every where is the centre, and
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