10 



17. "Bordeaux Mixture," by G, E. Stone. Third edition, revised. Illustrated. 



18. "Plant Lice or Aphids," by H. T. Fernald. Third edition, revised. Illus- 



trated. 



19. "Edible Weeds and Pot Herbs," by G. E. Stone. Third edition, revised. 



Illustrated. 



20. "Massachusetts Weeds," by G. E. Stone. Third edition, revised. Illus- 



trated. 



21. "Potato Rots," by G. E. Stone. Third edition, revised. Illustrated. 



22. Hints for Out-door Bu-d Study. I. "How to identify Birds." Seventh 



edition. Illustrated. 



23. Hints for Out-door Bird Study. II. "How to find Bu-ds." Seventh edi- 



tion, revised. Illustrated. 



24. Hints for Out-door Bird Study. III. " How to approach Birds." Seventh 



edition, revised. Illustrated. 



25. Hmts for Out-door Bird Study. IV. "How to attract Birds." Sixth 



edition, revised. Illustrated. 

 (Nos. 22, 23, 24 and 25, by E. H. Forbush.) 



26. "The Brown-tail Moth," by A. H. Kirkland. Fifth edition. Illustrated. 



27. "The Gypsy Moth," by A. H. Kirkland. Fifth edition, revised. Illus- 



trated. 



28. "The Garden Toad," by A. H. Kirkland. Fourth edition. Illustrated. 



29. I. "School Gardens," by H. D. Hemenway. Fourth edition. Illustrated. 



30. II. "Planting and Care of the School Garden," by H. D. Hemenway. 



Third edition. Illustrated. 



31. III. "Crops for the School Garden," by H. D. Hemenway. Fourth edi- 



tion. Illustrated. 



32. IV. " Results of School Gardening," by H. D. Hemenway. Fourth edition. 



Illustrated. 



35. "Window Gardening," by H. D. Hemenway. Third edition. Illustrated. 



36. "Hotbeds," by H. D. Hemenway. Fourth edition. Illustrated. 



37. "How to test Seeds," by H. D. Hemenway. Fourth edition. 



38. "How to Plant," by H. D. Hemenway. Fourth edition. Illustrated. 



41. "The European Elm-leaf Beetle," by A. H. Kirkland. Third edition, 

 revised. Illustrated. 



43. "The Leopard Moth," by W. S. Regan. Fourth edition. Illustrated. 



44. "Root and Cleft Grafting," by H. D. Hemenway. Third edition. Illus- 



trated. 



45. "Planting and Care of Trees," by H. D. Hemenway. Second edition. 



Illustrated. 



46. "How to Beautify the Home Grounds," by H. D. Hemenway. Second 



edition. Illustrated. 



47. "Weed Eradication by Chemical Treatment," by G. E. Stone. First edi- 



tion, 1915. Illustrated. 



48. "Apple Scab," by G. E. Stone. Second edition. Illustrated. 



