xn 



CONTENTS 



Chapter Page 



XXI. Taming and feeding Birds .... 347 



XXII. Elementary Forestry .... 365 



XXIII. Elementary Forestry {Co7ttinued) . . 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 



