APPENDIX. 



REFERENCE BOOKS ON BIRDS. 



Farmers' Bulletins: 



No. 54. Some Common Birds. 

 No. 493. The English Sparrow as a Pest. 

 No. 506. Food of Some Well-known Birds. 

 No. 513. Fifty Common Birds of Farm and 

 Orchard. 



Finley, W. L., American Birds, Scribners. 

 National Geographic Magazine, June, 1913. 



REFERENCE BOOKS ON FLOWERS. 

 Farmers' Bulletins : 



No. 28. Weeds ; and How to Kill Them. 

 No. 86. Thirty Poisonous Plants. 

 No. 188. Weeds Used in Medicine. 

 No. 195. Annual Flowering Plants. 



Going, M., Field, Forest, and Wayside Flowers, 

 Baker and Taylor Co. 



REFERENCE BOOKS ON TREES. 



Farmers' Bulletins: 



No. 134. Tree Planting on Rural School Grounds. 

 No. 173. Primer of Forestry. Part 1. 

 No. 358. Primer of Forestry. Part 2. 

 No. 423. Forest Nurseries for Schools. 



Mathews, F. S.. Familiar Trees, Appletons. 



