xu 



CONTENTS 



Chapter Page 



XXI. Taming and feeding Birds .... 347 



XXII. Elementary Forestry .... 365 



XXIII. Elementary Forestry (Continued) . . 379 



XXIV. Aquaria, — their Construction and Man- 



agement ........ 393 



XXV. Miscellaneous Animals . . . . 405 



XXVI. Flowerless Plants 435 



XXVII. Flowerless Plants {Continued), — Moulds, 



Mildews, Yeast, Bacteria . . . 457 



XXVIII. The Grade Plan 478 



Index 497 



