64 PICTURE OF ORGANIZED NATURE. 



Warm Zone. The Dormice (Myoxus), which are re- 

 lated to the Squirrels, are found in warm countries 

 only, and sleep during the winter; from which cir- 

 cumstance their natural condition may be inferred. 

 Agreeably to such considerations, the spreading of 

 those animals has been represented in the Picture. 



22. Beavers (Castor) live in the Northern Hemi- 

 sphere only, belonging to the colder half of the 

 Temperate Zone, between the 65th and 42d degree 

 N. L. In Lapland, according to Wahlenberg, the last 

 structures of Beavers along the rivers are found 3410 

 feet below the snow-line. They, in. general, inhabit 

 countries of the same character, in Europe, Asia, and 

 America. 



23. Cavies (Cavid) are peculiar to the New World, 

 and chiefly to its warmer part. The Damans (Hy- 

 rax), related to the before-mentioned animals, extend 

 to colder countries, as far as the snow-line. The 

 Hudson's Bay Hyrax (H. Hudsonius) lives on the 

 shores of Hudson's Bay. 



24. Porcupines (Hystrix) are peculiar to the Warm 

 Zone, and the contiguous parts of the Temperate 

 Zone, in both Hemispheres. The Long-Spined Por- 

 cupine (H. cristata) occurs at the Cape of Good 

 Hope, in Barbary, Palestine, Bucharia, Persia, China, 

 Malacca, Java, Sumatra, and in the Southern part of 



