20 



BOYS AND GIRLS IN BIOLOGY. 



the sugar you give it the least little bit of ammonia, 

 magnesia, lime, and potash, it will thrive splendidly 

 and grow like a little weed, only it does not grow in 

 the same way as the weed. The torula takes in its 

 " little pills " and churns them into that " elixir of 

 life " or protein, woody cells or cellulose and fat ; 

 then if you watch carefully, you will see a whole lot of 

 little buds coming out round the edges of the wall ; 

 hence, the torula is really a little knobby swelling (Fig. 



Fig. 12. 



Cell and its Buds. The Baby Torul^e grouped around their Mother. 



12). Some of the buds have other buds at their edges; 

 all these buds are the little baby torulje, and by-and-by 

 they break away from the old mother torula, and go 

 to house-keeping for themselves. They always pay 

 visits back and forth, and sometimes build their houses 

 right next the parental roof, in clusters like a pop-corn 

 ball (Fig. 13), and at other times they build them in 

 long rows like a chain, or a string of beads (Fig. 14). 



