INTRODUCTION. 



(5) Asia. 



(51) China. 



(52) Japan. 

 (54) India. 



(6) Africa. 

 (62) Egypt. 



(68) South Africa. 



(7) North America. 



(71) Canada. 



(72) Mexico. 



(73) United States. 



(8) South America* 



(9) Oceania. 



(931) New Zealand. 



(94) Australia. 



20 



